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mysterymanrog
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Anki111
in this question, is there combination formula we can put for the answer ?
1+1+2C1

I think only this is possible if you want a combination answer
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King_12
1+1+2C1
how did you get this
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Anki111
how did you get this
0 is a subset for every set then there is one subset of {a,c} then in {a,c,x} where we have 2 choices for x and we have to choose one so 2C1

Is the answer correct though?
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ans is correct. but i did not get how you got. can you plz explain again
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Anki111
ans is correct. but i did not get how you got. can you plz explain again
Sure, I just saw my earlier explanation had an error. In this questions it’s not asked to give proper subsets which means even the original one can be a subset which has a and c, which should have been the 1st one I mentioned before. Now when we check a subset with 2 entries it’s just one possibility which is {a,c} which is the 2nd one. Now finally we have a subset with 3 entries in which a and c is fixed so we have either b or d as the 3rd term, which in combination terms would be 2c1 which is to choose 1 out of 2
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Anki111
How many subsets of the set {a,b,c,d} { � , � , � , � } , containing both elements a � and c � (order of elements does not matter), are there? A. 3 B. 4 C. 5 D. 6 E. 7
Cases:

just a and c - 1
a,c and some other number: there is 1 way to choose ac and 2c1 ways to choose the second number, foe a total of 2 ways
a,c,b,d is its own subet so 1 way

total: 1+2+1=4

King_12
0 is a subset for every set then there is one subset of {a,c} then in {a,c,x} where we have 2 choices for x and we have to choose one so 2C1
0 is not a valid subset because the subsets must include a and c
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mysterymanrog
0 is not a valid subset because the subsets must include a and c
Yeah I saw that which is what I have mentioned in my second explanation
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Hello everyone. I appeared for the GMAT Club Quant test and scored Q48. Is it a good score to get me Q50 in the real gmat exam?
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yaa

which question are you solve please tell me

hii my score is very low quant please share me tips and resourses
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PS Question 1 - October 11

If the sum of n consecutive positive integers, where n is greater than 1, is 75. What is the sum of all possible values of n?

A. 5
B. 10
C. 16
D. 26
E. 50

Source: Princeton Review | Difficulty: Hard

DS Question 1 - October 11

Is a < b < c ?

(1) a - 1 < b < c + 1
(2) a + 1 < b < c - 1

Source: Math Revolutions | Difficulty: Hard
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kr0101
hii my score is very low quant please share me tips and resourses
You can definitely try out the free GMAT Club Mock Test. They are good in my opinion. Felt good...

If you are looking out for resources, it is better you join any online coaching institute. You can take free demo classes.

Because your prep has to be structured. Avoid studying randomly.
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gmatophobia
DS Question 1 - October 11 Is a < b < c ? (1) a - 1 < b < c + 1 (2) a + 1 < b < c - 1 Source: Math Revolutions | Difficulty: Hard
Through 1st statement it can be seen that B>a but not if c>b. It just says c+1 >b. B can be greater than c but less than c+1. Answer should be B.
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jainanant909
Hello everyone. I appeared for the GMAT Club Quant test and scored Q48. Is it a good score to get me Q50 in the real gmat exam?
Yes absolutely, I scored low on it as well. Tends to be harder my actual GMAT had very easy questions in between
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gmatophobia
DS Question 1 - October 11 Is a < b < c ? (1) a - 1 < b < c + 1 (2) a + 1 < b < c - 1 Source: Math Revolutions | Difficulty: Hard
1) b<c+1 but b can equal c or be less than, ins
2) b<c-1<c and a<a+1<b so we fan say a<a+1<b<c-1<c

sufficient

B
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Tukkebaaz
Yes absolutely, I scored low on it as well. Tends to be harder my actual GMAT had very easy questions in between
Awesome. Thank you very much!!
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The price of a wooden log increases with the length linearly. A long wooden block is chopped off along its cross-section into three pieces of length in the ratio 1:2:3. Because of this, the total price increased by Rs. 30. If the price of the original log was Rs. 45 more than the price of the new smallest log, find the price of the new largest log.

Options are 36, 54, 46, 42, 14

can someone explain this one

Also, is this a medium level question? I was unable to solve this one
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aditya.khare
42
can u explain how? Its correct
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