-> 200 - 140 -> 60

Surplus -> Sum of three combinations of intersection of two sets + 2 * (Intersection of three sets)

i.e. 60 -> 24 + 2 * (Intersection of three sets)

so, Intersection of three sets -> 18

]]>

-> 200 - 140 -> 60

Surplus -> Sum of three combinations of intersection of two sets + 2 * (Intersection of three sets)

i.e. 60 -> 24 + 2 * (Intersection of three sets)

so, Intersection of three sets -> 18]]>

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.

]]>

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.]]>

the formula for diagonals of an n sided polygon = n*(n - 3)/2 diagonal can be easily derived as follows:

consider a rectangle : 4 sides ABCD

now we know that there are just 2 diagonals here

but to apply the formula, we need to understand it

since there are 4 sides, n=4

but if you take a vertex, say A, it cannot have a diagonal with vertex B or vertex C (the adjacent vertices)

A can form a diagonal only with D

and B can form it with only B

hence when we calculate

...

]]>

the formula for diagonals of an n sided polygon = n*(n - 3)/2 diagonal can be easily derived as follows:

consider a rectangle : 4 sides ABCD

now we know that there are just 2 diagonals here

but to apply the formula, we need to understand it

since there are 4 sides, n=4

but if you take a vertex, say A, it cannot have a diagonal with vertex B or vertex C (the adjacent vertices)

A can form a diagonal only with D

and B can form it with only B

hence when we calculate

...]]>

Sites like Magoosh provide explanations after the problem so it is possible to learn how to solve each one and the fundamentals used in the process.

I feel my brain relates better to this style of learning and allows me to reference the information better. However, I was wondering what everyone's thoughts were on the matter?

Thanks in advance.

]]>

Sites like Magoosh provide explanations after the problem so it is possible to learn how to solve each one and the fundamentals used in the process.

I feel my brain relates better to this style of learning and allows me to reference the information better. However, I was wondering what everyone's thoughts were on the matter?

Thanks in advance.]]>

Sites like Magoosh provide explanations after the problem so it is possible to learn how to solve each one and the fundamentals used in the process.

I feel my brain relates better to this style of learning and allows me to reference the information better. However, I was wondering what everyone's thoughts were on the matter?

Thanks in advance.

]]>

Sites like Magoosh provide explanations after the problem so it is possible to learn how to solve each one and the fundamentals used in the process.

I feel my brain relates better to this style of learning and allows me to reference the information better. However, I was wondering what everyone's thoughts were on the matter?

Thanks in advance.]]>

Please see link for a list from Forbes of the best one-year international programs you may consider adding to your list

http://www.forbes.com/pictures/mli45effkk/1-imd-2/

Hope this helps and wish you all the best!

]]>

Please see link for a list from Forbes of the best one-year international programs you may consider adding to your list

http://www.forbes.com/pictures/mli45effkk/1-imd-2/

Hope this helps and wish you all the best!]]>

This can be simplified to

2^21 × 5^24 (since 2^3 = 8 and 5^2 = 25)

Now 2 x 5 =10

So, simplifying further

(2^21 × 5^21) x 5^3

= 10^21 x 5^3

= 125 x 10^21

10^21 has 1 one and 21 zeros which when multiplied with 125 gives 125 followed by 21 zeros

So, in total, 24 digits

Correct Option: B

]]>

This can be simplified to

2^21 × 5^24 (since 2^3 = 8 and 5^2 = 25)

Now 2 x 5 =10

So, simplifying further

(2^21 × 5^21) x 5^3

= 10^21 x 5^3

= 125 x 10^21

10^21 has 1 one and 21 zeros which when multiplied with 125 gives 125 followed by 21 zeros

So, in total, 24 digits

Correct Option: B]]>

even I felt B will be the answer.

Reading the question: Usually, in a strengthen question, we will look for the greatest weakness and then a strengthener that patches that weakness, because there is no greater way to strengthen an argument. But here we have a NOT question, so the correct answer is likely to be a weakener or be irrelevant. We'll use a basic filter: what answer choice weakens the idea that getting married makes a woman sleep longer and hence live longer?

Applying the filter: (A)

...

]]>

even I felt B will be the answer.

Reading the question: Usually, in a strengthen question, we will look for the greatest weakness and then a strengthener that patches that weakness, because there is no greater way to strengthen an argument. But here we have a NOT question, so the correct answer is likely to be a weakener or be irrelevant. We'll use a basic filter: what answer choice weakens the idea that getting married makes a woman sleep longer and hence live longer?

Applying the filter: (A)

...]]>

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.

]]>

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.]]>

VeritasPrepKarishma wrote:

nonameee wrote:

Bunuel, thanks a lot. I must have made some miscalculation.

Conceptually the question is interesting. However the numbers are quite "difficult" to work with. Do you think that a real GMAT question would have better numbers?

Conceptually the question is interesting. However the numbers are quite "difficult" to work with. Do you think that a real GMAT question would have better numbers?

Actually, the numbers are quite suitable for a very efficient, quick and oral solution. This is what I thought of when I came up with the answer in 20 secs. Mind you, you need to go through the link provided below to understand this theory. Else the 20 sec solution

...

]]>

VeritasPrepKarishma wrote:

nonameee wrote:

Bunuel, thanks a lot. I must have made some miscalculation.

Conceptually the question is interesting. However the numbers are quite "difficult" to work with. Do you think that a real GMAT question would have better numbers?

Conceptually the question is interesting. However the numbers are quite "difficult" to work with. Do you think that a real GMAT question would have better numbers?

Actually, the numbers are quite suitable for a very efficient, quick and oral solution. This is what I thought of when I came up with the answer in 20 secs. Mind you, you need to go through the link provided below to understand this theory. Else the 20 sec solution

...]]>

]]>

A.written with natural inks and imitated

B.written with natural inks and imitating

C.which were written with natural inks that imitated

D.which were written with natural inks and imitating

E.which was written with natural inks and which imitated

]]>

A.written with natural inks and imitated

B.written with natural inks and imitating

C.which were written with natural inks that imitated

D.which were written with natural inks and imitating

E.which was written with natural inks and which imitated]]>

A.written with natural inks and imitated

B.written with natural inks and imitating

C.which were written with natural inks that imitated

D.which were written with natural inks and imitating

E.which was written with natural inks and which imitated

]]>

A.written with natural inks and imitated

B.written with natural inks and imitating

C.which were written with natural inks that imitated

D.which were written with natural inks and imitating

E.which was written with natural inks and which imitated]]>

1st computer can be distributed in 7 offices, i.e in 7 ways

2nd computer can be distributed in remaining 6 offices, i.e in 6 ways

3rd computer can be distributed in remaining 5 offices, i.e in 5 ways

4th computer can be distributed in remaining 4 offices, i.e in 4 ways

5th computer can be distributed in remaining 3 offices, i.e in 3 ways

So the total # of distribution is 7*6*5*4*3 = 2520.

I know, the above solution is not correct.

...

]]>

1st computer can be distributed in 7 offices, i.e in 7 ways

2nd computer can be distributed in remaining 6 offices, i.e in 6 ways

3rd computer can be distributed in remaining 5 offices, i.e in 5 ways

4th computer can be distributed in remaining 4 offices, i.e in 4 ways

5th computer can be distributed in remaining 3 offices, i.e in 3 ways

So the total # of distribution is 7*6*5*4*3 = 2520.

I know, the above solution is not correct.

...]]>

If you already have last year's official GMAT guide then there is no need to buy the latest, the editions are not radically different. Instead, I would spend my money on official GMAT content such as GMATPrep Question Pack 1, and the four full length practice tests that are part of Exam Pack 1 and Exam Pack 2. Of course make sure you get the GMATPrep software from mba.com that comes with two free practice tests.

Dabral

...

]]>

If you already have last year's official GMAT guide then there is no need to buy the latest, the editions are not radically different. Instead, I would spend my money on official GMAT content such as GMATPrep Question Pack 1, and the four full length practice tests that are part of Exam Pack 1 and Exam Pack 2. Of course make sure you get the GMATPrep software from mba.com that comes with two free practice tests.

Dabral

...]]>

Like everyone else on this forum, I am also facing a dilemma. My options are not big but they are killing me with confusion. I have an admit from BYU with 8k per scholarship and an admit from GWU with 30k per year offer. The BYU program is already very affordable and with the scholarship it gets a little more inexpensive than GWu in terms of tuition. Also the living expenses in Provo are much within my reach as compared to DC. Tuition for me almost same with BYU being a little cheaper.

BYU

...

]]>

Like everyone else on this forum, I am also facing a dilemma. My options are not big but they are killing me with confusion. I have an admit from BYU with 8k per scholarship and an admit from GWU with 30k per year offer. The BYU program is already very affordable and with the scholarship it gets a little more inexpensive than GWu in terms of tuition. Also the living expenses in Provo are much within my reach as compared to DC. Tuition for me almost same with BYU being a little cheaper.

BYU

...]]>

Are you sure that GMAT gives questions that are region specific? I mean someone taking it in Europe is guaranteed to not get a question involving feet and miles, I find it hard to believe that. Is there a confirmation from GMAC about this?

PhilSad92

My guess is that this is not true. I know from looking at official GMAT questions that anything involving miles and yards will have the conversion scale given. For example, they will say 1 mile = 5280 feet, or 1 yard = 3 feet. However, they

...

]]>

Are you sure that GMAT gives questions that are region specific? I mean someone taking it in Europe is guaranteed to not get a question involving feet and miles, I find it hard to believe that. Is there a confirmation from GMAC about this?

PhilSad92

My guess is that this is not true. I know from looking at official GMAT questions that anything involving miles and yards will have the conversion scale given. For example, they will say 1 mile = 5280 feet, or 1 yard = 3 feet. However, they

...]]>

You can write anything in the notebook, as long as you do that during the timed section of the exam. You cannot write anything during the breaks. Just keep that in mind, and you will be fine.

Cheers,

Dabral

]]>

You can write anything in the notebook, as long as you do that during the timed section of the exam. You cannot write anything during the breaks. Just keep that in mind, and you will be fine.

Cheers,

Dabral]]>

Naina1 wrote:

bankerboy30 wrote:

Why is BA the height?

As angle B is 90, the side opposite to it is the largest side i.e. the hypotenuse.

So, other 2 sides are base and height.

Hope ithelps..

Agreed, that BA is the height but shouldnt the area be 1/2*AB (height) *BC??

Which should make it 1/2*2r*r =6

r^2=6

Does this not make the area to be 6PI ????

Please tell me where I'm going wrong

But what is Height AB, It is NOT 2r.. Because 2r means DIAMETER and that is AC..

Now how do you find

...

]]>

Naina1 wrote:

bankerboy30 wrote:

Why is BA the height?

As angle B is 90, the side opposite to it is the largest side i.e. the hypotenuse.

So, other 2 sides are base and height.

Hope ithelps..

Agreed, that BA is the height but shouldnt the area be 1/2*AB (height) *BC??

Which should make it 1/2*2r*r =6

r^2=6

Does this not make the area to be 6PI ????

Please tell me where I'm going wrong

But what is Height AB, It is NOT 2r.. Because 2r means DIAMETER and that is AC..

Now how do you find

...]]>

Bunuel wrote:

The siblings can be regarded as one unit so there are 4! combinations. But within this unit the siblings can sit in two different ways. So the number of ways to seat the 5 children so that the siblings DO sit together is \(4!*2 = 48\).

I thought 4! included all the possibilities not just a particular order? So that there is no need to multiply the 4! by 2.

Like how many ways can you arrange a, b, and c

3! = 6, as below shows if B and C were siblings both placements are accounted

...

]]>

Bunuel wrote:

The siblings can be regarded as one unit so there are 4! combinations. But within this unit the siblings can sit in two different ways. So the number of ways to seat the 5 children so that the siblings DO sit together is \(4!*2 = 48\).

I thought 4! included all the possibilities not just a particular order? So that there is no need to multiply the 4! by 2.

Like how many ways can you arrange a, b, and c

3! = 6, as below shows if B and C were siblings both placements are accounted

...]]>

In a recent tender, X people participated. 35% of the X people, who made an offer won the

specific tender they participated in. 70% of the rest, were disappointed from the result of

the tender. Which of the following expressions represents the number of people who

weren’t disappointed although they didn’t win the tender?

1. 39X/200

2. 25X.50

3. 19.5X/200

4. 35X/250

5. 90X/200

Don't have the answer and not sure about the source as I got this from my friend.

hi,

the total number is X..

35%

...

]]>

In a recent tender, X people participated. 35% of the X people, who made an offer won the

specific tender they participated in. 70% of the rest, were disappointed from the result of

the tender. Which of the following expressions represents the number of people who

weren’t disappointed although they didn’t win the tender?

1. 39X/200

2. 25X.50

3. 19.5X/200

4. 35X/250

5. 90X/200

Don't have the answer and not sure about the source as I got this from my friend.

hi,

the total number is X..

35%

...]]>

Please fine the responses inline.

EMPOWERgmatRichC wrote:

Hi ajay2121988,

With your current Test Date, you have about 5 weeks of study time remaining, which may or may not be enough time for you to hit your goal score. I'd like to know a bit more about your studies, how you took your CATs and your timeline/goals.

1) What is your study routine during a typical week?- on weekdays 8pm-12am with an hour of break - after coming back from work; weekends - 2-3 hours each in afternoon & night

2) What is your overall

...

]]>

Please fine the responses inline.

EMPOWERgmatRichC wrote:

Hi ajay2121988,

With your current Test Date, you have about 5 weeks of study time remaining, which may or may not be enough time for you to hit your goal score. I'd like to know a bit more about your studies, how you took your CATs and your timeline/goals.

1) What is your study routine during a typical week?- on weekdays 8pm-12am with an hour of break - after coming back from work; weekends - 2-3 hours each in afternoon & night

2) What is your overall

...]]>

Those who have been interviewed, hang on guys!!!

Wish luck to all.

Too much of excitement.

I told my company that I will take an off in the second week of May anywhere between Wed and Fri, I am still not sure when but heads up.

If I get selected I will get drunk and be merry the entire day, else will sob and try to come out of it. But the point is you need the day off.

Off for "what" makes me nervous everyday.

Wish you all luck again.

]]>

Those who have been interviewed, hang on guys!!!

Wish luck to all.

Too much of excitement.

I told my company that I will take an off in the second week of May anywhere between Wed and Fri, I am still not sure when but heads up.

If I get selected I will get drunk and be merry the entire day, else will sob and try to come out of it. But the point is you need the day off.

Off for "what" makes me nervous everyday.

Wish you all luck again.]]>

The length of the edging that surrounds circular garden K is 1/2 the length of the edging that surrounds circular garden G. What is the area of garden K (Assume that the edging has negligible width.)

(1) The area of G is \(25\pi\) square meters.

(2) The edging around G is \(10\pi\) meters long.

The question is very easy and above solutions are excellent. Just want to highlight one part the ratio of two circles circumference = the ratio of their radii, a fact that is very clear to see and saves us time.

...

]]>

The length of the edging that surrounds circular garden K is 1/2 the length of the edging that surrounds circular garden G. What is the area of garden K (Assume that the edging has negligible width.)

(1) The area of G is \(25\pi\) square meters.

(2) The edging around G is \(10\pi\) meters long.

The question is very easy and above solutions are excellent. Just want to highlight one part the ratio of two circles circumference = the ratio of their radii, a fact that is very clear to see and saves us time.

...]]>

31 of the scientists that attended a certain workshop were Wolf Prize laureates, and 13 of these 31 were also Nobel Prize laureates. Of the scientists that attended that workshop and had not received the Wolf prize, the number of scientists that had received the Nobel Prize was 3 greater than the number of scientists that had not received the Nobel Prize. If 50 of the scientists attended that workshop, how many of them were Nobel Prize laureates?

A)11

B)18

C)24

D)29

D)36

Can you help me?

You

...

]]>

31 of the scientists that attended a certain workshop were Wolf Prize laureates, and 13 of these 31 were also Nobel Prize laureates. Of the scientists that attended that workshop and had not received the Wolf prize, the number of scientists that had received the Nobel Prize was 3 greater than the number of scientists that had not received the Nobel Prize. If 50 of the scientists attended that workshop, how many of them were Nobel Prize laureates?

A)11

B)18

C)24

D)29

D)36

Can you help me?

You

...]]>

The circle with center C shown above is tangent to both axes. If the distance from O to C is equal to k, what is the radius of the circle, in terms of k ?

(A) k

(B) \(\frac{k}{\sqrt{2}}\)

(C) \(\frac{k}{\sqrt{3}}\)

(D) \(\frac{k}{2}\)

(E) \(\frac{k}{3}\)

If we draw radius to two point of tangency(we will have two 90 degrees there and other two angles will also be 90 degrees. find out why.) then we will draw a square with 4 sides equal(find out why

...

]]>

The circle with center C shown above is tangent to both axes. If the distance from O to C is equal to k, what is the radius of the circle, in terms of k ?

(A) k

(B) \(\frac{k}{\sqrt{2}}\)

(C) \(\frac{k}{\sqrt{3}}\)

(D) \(\frac{k}{2}\)

(E) \(\frac{k}{3}\)

If we draw radius to two point of tangency(we will have two 90 degrees there and other two angles will also be 90 degrees. find out why.) then we will draw a square with 4 sides equal(find out why

...]]>

Attachments

cubeSphere.jpg [ 94.97 KiB | Viewed 24 times ]

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Attachments

cubeSphere.jpg [ 94.97 KiB | Viewed 24 times ]

]]>

Bunuel wrote:

If \(k=\frac{x}{5^az^by^c}\), and k is expressed as a decimal, will that decimal terminate?

(1) y = 3

(2) z = 2

I think the answer should be A because if any fraction having 3 in its denominator. That should be non terminating.

I can be wrong also but i will go with A.

(1) y = 3

(2) z = 2

I think the answer should be A because if any fraction having 3 in its denominator. That should be non terminating.

I can be wrong also but i will go with A.

Yes if a 3 is in denomnator, answer should be a non terminating decimal, BUT the fraction has to be in simplest form..

examples

\(k=\frac{x}{5^az^by^c}\) .

a) x= 9, c=2..

\(k=\frac{9}{5^az^b3^2}\) =\(k=\frac{1}{5^az^b}\) .. so 3 is cancelled out. we do ot know what z is. so

...

]]>

Bunuel wrote:

If \(k=\frac{x}{5^az^by^c}\), and k is expressed as a decimal, will that decimal terminate?

(1) y = 3

(2) z = 2

I think the answer should be A because if any fraction having 3 in its denominator. That should be non terminating.

I can be wrong also but i will go with A.

(1) y = 3

(2) z = 2

I think the answer should be A because if any fraction having 3 in its denominator. That should be non terminating.

I can be wrong also but i will go with A.

Yes if a 3 is in denomnator, answer should be a non terminating decimal, BUT the fraction has to be in simplest form..

examples

\(k=\frac{x}{5^az^by^c}\) .

a) x= 9, c=2..

\(k=\frac{9}{5^az^b3^2}\) =\(k=\frac{1}{5^az^b}\) .. so 3 is cancelled out. we do ot know what z is. so

...]]>

GMATPrep1: 720 (Q50, V38)

ankuujj wrote:

Verbal is going to be my Achilles's heel - planning to do a 30:70 split.

]]>

GMATPrep1: 720 (Q50, V38)

ankuujj wrote:

Verbal is going to be my Achilles's heel - planning to do a 30:70 split.

In addition to the advices above, as an applicant on the upper range with regards to age and work experience, it would help to demonstrate strong leadership experiences and teamwork skills across projects, functions, and culture. This is to highlight how you can contribute to the experience of your peers and class discussions.

Long running and continuing personal passions can also help you stand out.

Wish you all the best and look forward to your updates.

]]>

In addition to the advices above, as an applicant on the upper range with regards to age and work experience, it would help to demonstrate strong leadership experiences and teamwork skills across projects, functions, and culture. This is to highlight how you can contribute to the experience of your peers and class discussions.

Long running and continuing personal passions can also help you stand out.

Wish you all the best and look forward to your updates.]]>

Does Wharton usually call admitted students the day of or day before the official decision date?

For R1/R2, the calls are made on the day of the decisions and not before. Do note that the calls for R1/R2, started from 7 AM Eastern on the decision day.

]]>

Does Wharton usually call admitted students the day of or day before the official decision date?

For R1/R2, the calls are made on the day of the decisions and not before. Do note that the calls for R1/R2, started from 7 AM Eastern on the decision day.]]>

In addition to the above advices, you will do well to present your interests in health and supporting veterans as a long-running passion, supported with details about your family and the efforts you have personally out in. This could help you stand out, aside from your well-rounded profile.

You can then relate how an MBA at the target program can help you make a greater impact post-MBA on these causes.

Wish you all the best and look forward to your updates.

]]>

In addition to the above advices, you will do well to present your interests in health and supporting veterans as a long-running passion, supported with details about your family and the efforts you have personally out in. This could help you stand out, aside from your well-rounded profile.

You can then relate how an MBA at the target program can help you make a greater impact post-MBA on these causes.

Wish you all the best and look forward to your updates.]]>

For great essays, you need to present your personal story, what motivates you, and substantiate with your experiences and accomplishments. Identifying why you need an MBA from the specific program, and how this will help you reach your post-MBA goal will also help your chances.

Presented properly your involvement in working with a microfinance bank and free community service could help you stand out and strengthen your chances.

For more on admissions consulting, you may contact

...

]]>

For great essays, you need to present your personal story, what motivates you, and substantiate with your experiences and accomplishments. Identifying why you need an MBA from the specific program, and how this will help you reach your post-MBA goal will also help your chances.

Presented properly your involvement in working with a microfinance bank and free community service could help you stand out and strengthen your chances.

For more on admissions consulting, you may contact

...]]>

With these Quant and Verbal Scaled Scores, you have a great opportunity to pick up BIG points in BOTH the Quant and Verbal sections, so you can spend your time focused on either or (or split time between both).

From what you've described about your available study time, it sounds like you're planning to 'cram' during these last 7 days. That is almost always a BAD idea right before the GMAT. You can certainly get in some significant study time, but you don't want to run the risk of

...

]]>

With these Quant and Verbal Scaled Scores, you have a great opportunity to pick up BIG points in BOTH the Quant and Verbal sections, so you can spend your time focused on either or (or split time between both).

From what you've described about your available study time, it sounds like you're planning to 'cram' during these last 7 days. That is almost always a BAD idea right before the GMAT. You can certainly get in some significant study time, but you don't want to run the risk of

...]]>

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.

]]>

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.]]>

badboson wrote:

Not sure why 'A' is wrong. Isn't 'it' refers to 'colony' in option A? Any explanation will be really appreciated!!

When it is required to refer to an entire action rather than a single noun, we must usedo so rather thando it .

Here the entire action "establish a permanent colony" is required to be referred to , not just "colony". Hence usage of "it" is wrong.

...

]]>

badboson wrote:

Not sure why 'A' is wrong. Isn't 'it' refers to 'colony' in option A? Any explanation will be really appreciated!!

When it is required to refer to an entire action rather than a single noun, we must usedo so rather thando it .

Here the entire action "establish a permanent colony" is required to be referred to , not just "colony". Hence usage of "it" is wrong.

...]]>

We can reduce the number to 4^500 (as the remainder of 999/5 is 4 and we can get the same remainder for 4^500 and 999^500 regardless of which is divided 5 )

Now, let's notice the pattern of remainders of powers of 4 when divided by 5

R{(4^1)/5} = 4

R{(4^2)/5} = 1

R{(4^3)/5} = 4

R{(4^4)/5} = 1

and so on

So, even powers of 4 give a remainder of 1

Hence, R{(4^500)/5} will be 1

R{(999^500)/5} will also be 1

Correct Option : B

]]>

We can reduce the number to 4^500 (as the remainder of 999/5 is 4 and we can get the same remainder for 4^500 and 999^500 regardless of which is divided 5 )

Now, let's notice the pattern of remainders of powers of 4 when divided by 5

R{(4^1)/5} = 4

R{(4^2)/5} = 1

R{(4^3)/5} = 4

R{(4^4)/5} = 1

and so on

So, even powers of 4 give a remainder of 1

Hence, R{(4^500)/5} will be 1

R{(999^500)/5} will also be 1

Correct Option : B]]>

nmohindru wrote:

clubzzang wrote:

Pls help me understand this Qcorrectly...

Minivans carry as many as seven passengers and, compared with most sport utility vehicles, cost less, get better gas mileage, allow passengers to get in and out more easily, and have a smoother ride.

A.Minivans carry as many as sevenpassengers and, compared with most sport utility vehicles, cost less,

B.Minivans, which carry as many as seven passengers, compared with most sport utility vehicles,they cost less,

C.Minivans carry as many as seven

Minivans carry as many as seven passengers and, compared with most sport utility vehicles, cost less, get better gas mileage, allow passengers to get in and out more easily, and have a smoother ride.

A.Minivans carry as many as sevenpassengers and, compared with most sport utility vehicles, cost less,

B.Minivans, which carry as many as seven passengers, compared with most sport utility vehicles,they cost less,

C.Minivans carry as many as seven

...

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nmohindru wrote:

clubzzang wrote:

Pls help me understand this Qcorrectly...

Minivans carry as many as seven passengers and, compared with most sport utility vehicles, cost less, get better gas mileage, allow passengers to get in and out more easily, and have a smoother ride.

A.Minivans carry as many as sevenpassengers and, compared with most sport utility vehicles, cost less,

B.Minivans, which carry as many as seven passengers, compared with most sport utility vehicles,they cost less,

C.Minivans carry as many as seven

Minivans carry as many as seven passengers and, compared with most sport utility vehicles, cost less, get better gas mileage, allow passengers to get in and out more easily, and have a smoother ride.

A.Minivans carry as many as sevenpassengers and, compared with most sport utility vehicles, cost less,

B.Minivans, which carry as many as seven passengers, compared with most sport utility vehicles,they cost less,

C.Minivans carry as many as seven

...]]>

so original price = $75

during the last 2 weeks of the month sale price is further reduced by 20%

so original price = 0.8 * 75 = $60

so final price is 60% of original price

correct answer - D

]]>

so original price = $75

during the last 2 weeks of the month sale price is further reduced by 20%

so original price = 0.8 * 75 = $60

so final price is 60% of original price

correct answer - D]]>

marking down the price by further 10% = 0.9 * 80 = $ 72

so final price is 72% of original price

correct answer - A

]]>

marking down the price by further 10% = 0.9 * 80 = $ 72

so final price is 72% of original price

correct answer - A]]>

but vertically opposite angles on a pair of opposite lines are equal

4a = b +40

80 = a +40

a = 40

correct answer - B

]]>

but vertically opposite angles on a pair of opposite lines are equal

4a = b +40

80 = a +40

a = 40

correct answer - B]]>

y = 30

4y = 4 * 30 = 120

but opposite angles on a pair of intersecting lines are equal

x+20 = 120

x = 100 degrees

correct answer - D

]]>

y = 30

4y = 4 * 30 = 120

but opposite angles on a pair of intersecting lines are equal

x+20 = 120

x = 100 degrees

correct answer - D]]>

If x and y are positive integers, what is the greatest common divisor of x and y?

(1) 2x + y = 73

(2) 5x – 3y = 1

[Reveal] Spoiler:

Here I'm not sure that the answer is C because is true that we need of both statement to find possible values for X and Y. Infact statement 1 and 2 we do not have values for the variables (can be everything).

But it seems to be a trap answer......

But it seems to be a trap answer......

A very simple way to solve this problem will be:

1. 2x is even -> even +y=odd -> this mean y is odd -> even and

...

]]>

If x and y are positive integers, what is the greatest common divisor of x and y?

(1) 2x + y = 73

(2) 5x – 3y = 1

[Reveal] Spoiler:

Here I'm not sure that the answer is C because is true that we need of both statement to find possible values for X and Y. Infact statement 1 and 2 we do not have values for the variables (can be everything).

But it seems to be a trap answer......

But it seems to be a trap answer......

A very simple way to solve this problem will be:

1. 2x is even -> even +y=odd -> this mean y is odd -> even and

...]]>

24 means 4*6. This 4 can be multiplied with 25 which will give result 100.

know I also think that there was some ambiguity in the sentence.

Thanks for highlighting.

Regards

Himanshu

To find the no of trailing zeros in a number the best method is to calculate the no of 5's and 2's because that makes up 10 { The least number with one trailingzero}

\(x= \frac{25!}{20!}\) = 21 x 22 x 23 x 24 x 25

21 = 3 x 7

22 = 2 x 11

23 = 23 x 1

24 =\(2^3\) x 3

25 =\(5^2\)

So, 21 x 22 x 23 x 24 x 25 => \(2^4\) x\(3^2\) x

...

]]>

24 means 4*6. This 4 can be multiplied with 25 which will give result 100.

know I also think that there was some ambiguity in the sentence.

Thanks for highlighting.

Regards

Himanshu

To find the no of trailing zeros in a number the best method is to calculate the no of 5's and 2's because that makes up 10 { The least number with one trailingzero}

\(x= \frac{25!}{20!}\) = 21 x 22 x 23 x 24 x 25

21 = 3 x 7

22 = 2 x 11

23 = 23 x 1

24 =\(2^3\) x 3

25 =\(5^2\)

So, 21 x 22 x 23 x 24 x 25 => \(2^4\) x\(3^2\) x

...]]>

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.

]]>

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.]]>

A 20% decrease in y = 0.8y

calculating z = \(xy^2\)

change in z = \(1.5x\) * \(0.8y^2\)

so z = 0.96 times original z

clearly its a 4 % decrease

correct answer - A

]]>

A 20% decrease in y = 0.8y

calculating z = \(xy^2\)

change in z = \(1.5x\) * \(0.8y^2\)

so z = 0.96 times original z

clearly its a 4 % decrease

correct answer - A]]>