It is currently 19 Oct 2017, 04:17

GMAT Club Daily Prep

Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

m05#06

 new topic post reply Question banks Downloads My Bookmarks Reviews Important topics
Author Message
Manager
Joined: 14 May 2008
Posts: 57

Kudos [?]: 16 [0], given: 1

Schools: Wharton (WEMBA East)
m05#06 [#permalink]

Show Tags

14 Oct 2008, 19:08
1
This post was
BOOKMARKED
What is the product of 6 consecutive integers?

1. The greatest integer is 4
2. The sequence has both positive and negative integers

[Reveal] Spoiler: OA
D

Source: GMAT Club Tests - hardest GMAT questions

The explanation for S1 indicates that all integers are knowable (The greatest integer is 4).

S2 indicates that "the sequence has both positive and negative integers" therefore zero is included and the product will be zero.

Nothing is incorrect with the explanation, but S1 would also be sufficient by dint of zero also being included in the sequence. Or at least that's what I take consecutive to mean.

I only mention this because it's another way to prosecute S1, although I admit knowing I could crank out the product concretely was the first reason I discounted S1.

Kudos [?]: 16 [0], given: 1

CIO
Joined: 02 Oct 2007
Posts: 1218

Kudos [?]: 978 [0], given: 334

Re: m05#06 [#permalink]

Show Tags

22 Oct 2008, 09:09
Sorry, I couldn't understand your point. Do you suggest that we state in the explanation for S1 that 0 will be one of the numbers.

Thanks.
_________________

Welcome to GMAT Club!

Want to solve GMAT questions on the go? GMAT Club iPhone app will help.
Please read this before posting in GMAT Club Tests forum
Result correlation between real GMAT and GMAT Club Tests
Are GMAT Club Test sets ordered in any way?

Take 15 free tests with questions from GMAT Club, Knewton, Manhattan GMAT, and Veritas.

GMAT Club Premium Membership - big benefits and savings

Kudos [?]: 978 [0], given: 334

Director
Joined: 25 Aug 2007
Posts: 927

Kudos [?]: 1504 [0], given: 40

WE 1: 3.5 yrs IT
WE 2: 2.5 yrs Retail chain
Re: m05#06 [#permalink]

Show Tags

23 May 2010, 09:13
I have a doubt.

In S2, It is not mentioned that the series is of consecutive odd or even numbers:
-4, -2, 0, 2, 4, 6
-3, -1, 1, 3, 5, 7

Both the above sequences are of consecutive numbers (even/odd) but having different products. So, I think OA should be A.
_________________

Want to improve your CR: http://gmatclub.com/forum/cr-methods-an-approach-to-find-the-best-answers-93146.html
Tricky Quant problems: http://gmatclub.com/forum/50-tricky-questions-92834.html
Important Grammer Fundamentals: http://gmatclub.com/forum/key-fundamentals-of-grammer-our-crucial-learnings-on-sc-93659.html

Kudos [?]: 1504 [0], given: 40

CIO
Joined: 02 Oct 2007
Posts: 1218

Kudos [?]: 978 [1], given: 334

Re: m05#06 [#permalink]

Show Tags

24 May 2010, 04:44
1
This post received
KUDOS
The sequence contains both even and odd integers. How would you specify that both odd and even integers are in the sequence? I thought it goes without saying if not stated otherwise. Any suggestions? Thanks.
ykaiim wrote:
I have a doubt.

In S2, It is not mentioned that the series is of consecutive odd or even numbers:
-4, -2, 0, 2, 4, 6
-3, -1, 1, 3, 5, 7

Both the above sequences are of consecutive numbers (even/odd) but having different products. So, I think OA should be A.

_________________

Welcome to GMAT Club!

Want to solve GMAT questions on the go? GMAT Club iPhone app will help.
Please read this before posting in GMAT Club Tests forum
Result correlation between real GMAT and GMAT Club Tests
Are GMAT Club Test sets ordered in any way?

Take 15 free tests with questions from GMAT Club, Knewton, Manhattan GMAT, and Veritas.

GMAT Club Premium Membership - big benefits and savings

Kudos [?]: 978 [1], given: 334

Director
Joined: 25 Aug 2007
Posts: 927

Kudos [?]: 1504 [0], given: 40

WE 1: 3.5 yrs IT
WE 2: 2.5 yrs Retail chain
Re: m05#06 [#permalink]

Show Tags

24 May 2010, 05:01
See we can have a three different consecutive series:
1. Simple consecutive, with difference 1.
2. Consecutive odd (Example, -3, -1, 1, 3, 5, 7), and
3. Consecutive even (Example, -4, -2, 0, 2, 4, 6)

S2 says that "the sequence has both positive and negative integers". It is not mentioned what type of consecutives the sequesnce is. So, it is not neccasary and correct to choose the (1) one.

dzyubam wrote:
The sequence contains both even and odd integers. How would you specify that both odd and even integers are in the sequence? I thought it goes without saying if not stated otherwise. Any suggestions? Thanks.
ykaiim wrote:
I have a doubt.

In S2, It is not mentioned that the series is of consecutive odd or even numbers:
-4, -2, 0, 2, 4, 6
-3, -1, 1, 3, 5, 7

Both the above sequences are of consecutive numbers (even/odd) but having different products. So, I think OA should be A.

_________________

Want to improve your CR: http://gmatclub.com/forum/cr-methods-an-approach-to-find-the-best-answers-93146.html
Tricky Quant problems: http://gmatclub.com/forum/50-tricky-questions-92834.html
Important Grammer Fundamentals: http://gmatclub.com/forum/key-fundamentals-of-grammer-our-crucial-learnings-on-sc-93659.html

Kudos [?]: 1504 [0], given: 40

Director
Joined: 25 Aug 2007
Posts: 927

Kudos [?]: 1504 [0], given: 40

WE 1: 3.5 yrs IT
WE 2: 2.5 yrs Retail chain
Re: m05#06 [#permalink]

Show Tags

28 May 2010, 10:47
No reply yet
_________________

Want to improve your CR: http://gmatclub.com/forum/cr-methods-an-approach-to-find-the-best-answers-93146.html
Tricky Quant problems: http://gmatclub.com/forum/50-tricky-questions-92834.html
Important Grammer Fundamentals: http://gmatclub.com/forum/key-fundamentals-of-grammer-our-crucial-learnings-on-sc-93659.html

Kudos [?]: 1504 [0], given: 40

Math Expert
Joined: 02 Sep 2009
Posts: 41893

Kudos [?]: 128822 [2], given: 12183

Re: m05#06 [#permalink]

Show Tags

29 May 2010, 06:27
2
This post received
KUDOS
Expert's post
ykaiim wrote:
See we can have a three different consecutive series:
1. Simple consecutive, with difference 1.
2. Consecutive odd (Example, -3, -1, 1, 3, 5, 7), and
3. Consecutive even (Example, -4, -2, 0, 2, 4, 6)

S2 says that "the sequence has both positive and negative integers". It is not mentioned what type of consecutives the sequesnce is. So, it is not neccasary and correct to choose the (1) one.

dzyubam wrote:
The sequence contains both even and odd integers. How would you specify that both odd and even integers are in the sequence? I thought it goes without saying if not stated otherwise. Any suggestions? Thanks.
ykaiim wrote:
I have a doubt.

In S2, It is not mentioned that the series is of consecutive odd or even numbers:
-4, -2, 0, 2, 4, 6
-3, -1, 1, 3, 5, 7

Both the above sequences are of consecutive numbers (even/odd) but having different products. So, I think OA should be A.

When we see "consecutive integers" it ALWAYS means integers that follow each other in order with common difference of 1: ... x-3, x-2, x-1, x, x+1, x+2, ... (no such thing as simple consecutive integers).

-7, -6, -5 are consecutive integers.

2, 4, 6 ARE NOT consecutive integers, they are consecutive even integers.

3, 5, 7 ARE NOT consecutive integers, they are consecutive odd integers.

Hope it helps.
_________________

Kudos [?]: 128822 [2], given: 12183

Director
Joined: 25 Aug 2007
Posts: 927

Kudos [?]: 1504 [0], given: 40

WE 1: 3.5 yrs IT
WE 2: 2.5 yrs Retail chain
Re: m05#06 [#permalink]

Show Tags

29 May 2010, 06:30
Bunuel,

Do you mean to say, unless clearl y mentioned what type of consecutives number, we need to consider the immediate consecutive numbers -2, -1, 0, 1, 2, 3, 4.....?
_________________

Want to improve your CR: http://gmatclub.com/forum/cr-methods-an-approach-to-find-the-best-answers-93146.html
Tricky Quant problems: http://gmatclub.com/forum/50-tricky-questions-92834.html
Important Grammer Fundamentals: http://gmatclub.com/forum/key-fundamentals-of-grammer-our-crucial-learnings-on-sc-93659.html

Kudos [?]: 1504 [0], given: 40

Math Expert
Joined: 02 Sep 2009
Posts: 41893

Kudos [?]: 128822 [0], given: 12183

Re: m05#06 [#permalink]

Show Tags

29 May 2010, 06:42
ykaiim wrote:
Bunuel,

Do you mean to say, unless clearl y mentioned what type of consecutives number, we need to consider the immediate consecutive numbers -2, -1, 0, 1, 2, 3, 4.....?

Yes. "Consecutive integers", unless otherwise specified, means integers that follow each other in order with common difference of 1.
_________________

Kudos [?]: 128822 [0], given: 12183

Director
Joined: 25 Aug 2007
Posts: 927

Kudos [?]: 1504 [0], given: 40

WE 1: 3.5 yrs IT
WE 2: 2.5 yrs Retail chain
Re: m05#06 [#permalink]

Show Tags

29 May 2010, 08:07
Thanks Bunuel. This is useful concept.
_________________

Want to improve your CR: http://gmatclub.com/forum/cr-methods-an-approach-to-find-the-best-answers-93146.html
Tricky Quant problems: http://gmatclub.com/forum/50-tricky-questions-92834.html
Important Grammer Fundamentals: http://gmatclub.com/forum/key-fundamentals-of-grammer-our-crucial-learnings-on-sc-93659.html

Kudos [?]: 1504 [0], given: 40

Intern
Joined: 21 Jun 2010
Posts: 10

Kudos [?]: 1 [0], given: 11

Re: m05#06 [#permalink]

Show Tags

12 Nov 2010, 18:59
rmangal wrote:
A

rmangal... that's incorrect!!!

Kudos [?]: 1 [0], given: 11

Manager
Joined: 23 Oct 2010
Posts: 84

Kudos [?]: 32 [0], given: 6

Location: India
Re: m05#06 [#permalink]

Show Tags

12 Nov 2010, 21:09
I would go with A. As explained earlier option 1 seems to include all information that is required. Option 2 just gives a small set of information which is already available in 1.

Posted from my mobile device

Kudos [?]: 32 [0], given: 6

Manager
Joined: 23 Oct 2010
Posts: 84

Kudos [?]: 32 [0], given: 6

Location: India
Re: m05#06 [#permalink]

Show Tags

12 Nov 2010, 21:14
So I am wrong, looking at the OA. Did not consider that option 2 also states that there is 0 as one of the numbers. I think I was trying to be fast/furious . Arrived at the first answer within 30s and hence missed some details.

Posted from my mobile device

Kudos [?]: 32 [0], given: 6

Senior Manager
Joined: 01 Nov 2010
Posts: 285

Kudos [?]: 85 [0], given: 44

Location: India
Concentration: Technology, Marketing
GMAT Date: 08-27-2012
GPA: 3.8
WE: Marketing (Manufacturing)
Re: m05#06 [#permalink]

Show Tags

12 Nov 2010, 23:34
What is the product of 6 consecutive integers?

1. The greatest integer is 4
2. The sequence has both positive and negative integers

My Sol:
the product of 6 integer is 0.
stmnt 1: it tells that nos are -1,0,1,2,3,4(from the definition of Integer.)

(An integer is a whole number (not a fraction) that can be positive, negative, or zero. Therefore, the numbers 10, 0, -25, and 5,148 are all integers. )

multiply them , you will 0 as Ans.

Stmnt 2: it tells nothing but def of integer.

so, statement 1 is sufficient alone to answer the question.
and Answer is 0.
_________________

kudos me if you like my post.

Attitude determine everything.
all the best and God bless you.

Kudos [?]: 85 [0], given: 44

Manager
Status: I rest, I rust.
Joined: 04 Oct 2010
Posts: 121

Kudos [?]: 127 [2], given: 9

Schools: ISB - Co 2013
WE 1: IT Professional since 2006
Re: m05#06 [#permalink]

Show Tags

13 Nov 2010, 01:18
2
This post received
KUDOS
321kumarsushant wrote:
What is the product of 6 consecutive integers?

1. The greatest integer is 4
2. The sequence has both positive and negative integers

My Sol:
the product of 6 integer is 0.
stmnt 1: it tells that nos are -1,0,1,2,3,4(from the definition of Integer.)

(An integer is a whole number (not a fraction) that can be positive, negative, or zero. Therefore, the numbers 10, 0, -25, and 5,148 are all integers. )

multiply them , you will 0 as Ans.

Stmnt 2: it tells nothing but def of integer.

so, statement 1 is sufficient alone to answer the question.
and Answer is 0.

Ok, here's the deal: As soon as S1 gives you the answer, you do NOT rush to click 'A'. You analyse S2 as well, and if S2 does not provide the answer too, you click 'A', else you click 'D' (please note that S1 has given an answer already so B,C and E are out of question).

Now, we know S1 gives us the answer (0).
Lets analyze S2 now. "The sequence (of 6 consecutive integers) has both positive and negative integers". So the sequence could be one of the following four:
{-4,-3,-2,-1,0,1}, {-3,-2,-1,0,1,2}, {-2,-1,0,1,2,3}, {-1,0,1,2,3,4}
'0' is always present hence product is always 0. Good, S2 gives us an answer too. Lets click 'D' now.
_________________

Respect,
Vaibhav

PS: Correct me if I am wrong.

Kudos [?]: 127 [2], given: 9

Senior Manager
Joined: 01 Nov 2010
Posts: 285

Kudos [?]: 85 [0], given: 44

Location: India
Concentration: Technology, Marketing
GMAT Date: 08-27-2012
GPA: 3.8
WE: Marketing (Manufacturing)
Re: m05#06 [#permalink]

Show Tags

13 Nov 2010, 02:18
vaibhavtripathi wrote:
321kumarsushant wrote:
What is the product of 6 consecutive integers?

1. The greatest integer is 4
2. The sequence has both positive and negative integers

My Sol:
the product of 6 integer is 0.
stmnt 1: it tells that nos are -1,0,1,2,3,4(from the definition of Integer.)

(An integer is a whole number (not a fraction) that can be positive, negative, or zero. Therefore, the numbers 10, 0, -25, and 5,148 are all integers. )

multiply them , you will 0 as Ans.

Stmnt 2: it tells nothing but def of integer.

so, statement 1 is sufficient alone to answer the question.
and Answer is 0.

Ok, here's the deal: As soon as S1 gives you the answer, you do NOT rush to click 'A'. You analyse S2 as well, and if S2 does not provide the answer too, you click 'A', else you click 'D' (please note that S1 has given an answer already so B,C and E are out of question).

Now, we know S1 gives us the answer (0).
Lets analyze S2 now. "The sequence (of 6 consecutive integers) has both positive and negative integers". So the sequence could be one of the following four:
{-4,-3,-2,-1,0,1}, {-3,-2,-1,0,1,2}, {-2,-1,0,1,2,3}, {-1,0,1,2,3,4}
'0' is always present hence product is always 0. Good, S2 gives us an answer too. Lets click 'D' now.

hey vaibhav,

such a nice explanation.
i was about to reply you back, but then only i realize .. what you have said is right.
thnx a ton.

both statement can answer the question alone.
and the ultimate answer will be 0(Zero.)
_________________

kudos me if you like my post.

Attitude determine everything.
all the best and God bless you.

Kudos [?]: 85 [0], given: 44

Manager
Status: I rest, I rust.
Joined: 04 Oct 2010
Posts: 121

Kudos [?]: 127 [0], given: 9

Schools: ISB - Co 2013
WE 1: IT Professional since 2006
Re: m05#06 [#permalink]

Show Tags

13 Nov 2010, 05:02
Glad I could help.
_________________

Respect,
Vaibhav

PS: Correct me if I am wrong.

Kudos [?]: 127 [0], given: 9

Intern
Joined: 14 Sep 2010
Posts: 7

Kudos [?]: 1 [0], given: 6

Re: m05#06 [#permalink]

Show Tags

13 Nov 2010, 12:00
statement 2 only says 'The sequence has both positive and negative integers' n doesnt speak where it starts n ends. eg {1,2,3,4,5,6} can also be valid
IMO A

vaibhavtripathi wrote:
321kumarsushant wrote:
What is the product of 6 consecutive integers?

1. The greatest integer is 4
2. The sequence has both positive and negative integers

My Sol:
the product of 6 integer is 0.
stmnt 1: it tells that nos are -1,0,1,2,3,4(from the definition of Integer.)

(An integer is a whole number (not a fraction) that can be positive, negative, or zero. Therefore, the numbers 10, 0, -25, and 5,148 are all integers. )

multiply them , you will 0 as Ans.

Stmnt 2: it tells nothing but def of integer.

so, statement 1 is sufficient alone to answer the question.
and Answer is 0.

Ok, here's the deal: As soon as S1 gives you the answer, you do NOT rush to click 'A'. You analyse S2 as well, and if S2 does not provide the answer too, you click 'A', else you click 'D' (please note that S1 has given an answer already so B,C and E are out of question).

Now, we know S1 gives us the answer (0).
Lets analyze S2 now. "The sequence (of 6 consecutive integers) has both positive and negative integers". So the sequence could be one of the following four:
{-4,-3,-2,-1,0,1}, {-3,-2,-1,0,1,2}, {-2,-1,0,1,2,3}, {-1,0,1,2,3,4}
'0' is always present hence product is always 0. Good, S2 gives us an answer too. Lets click 'D' now.

Kudos [?]: 1 [0], given: 6

Math Expert
Joined: 02 Sep 2009
Posts: 41893

Kudos [?]: 128822 [0], given: 12183

Re: m05#06 [#permalink]

Show Tags

13 Nov 2010, 12:16
iamharish wrote:
statement 2 only says 'The sequence has both positive and negative integers' n doesnt speak where it starts n ends. eg {1,2,3,4,5,6} can also be valid
IMO A

First of all your example is not valid as {1, 2, 3, 4, 5, 6} doesn't have both positive and negative integers.

Next, if a sequence of consecutive integers has both positive and negative numbers in it then it must also contain zero, so the product of the terms of such sequence is always zero --> statement 2 is sufficient too.

OA for this question is D.
_________________

Kudos [?]: 128822 [0], given: 12183

Intern
Joined: 14 Sep 2010
Posts: 7

Kudos [?]: 1 [0], given: 6

Re: m05#06 [#permalink]

Show Tags

13 Nov 2010, 21:23
yes yes...i'm sry. somehw missed it. thanx Bunuel

Bunuel wrote:
iamharish wrote:
statement 2 only says 'The sequence has both positive and negative integers' n doesnt speak where it starts n ends. eg {1,2,3,4,5,6} can also be valid
IMO A

First of all your example is not valid as {1, 2, 3, 4, 5, 6} doesn't have both positive and negative integers.

Next, if a sequence of consecutive integers has both positive and negative numbers in it then it must also contain zero, so the product of the terms of such sequence is always zero --> statement 2 is sufficient too.

OA for this question is D.

Kudos [?]: 1 [0], given: 6

Re: m05#06   [#permalink] 13 Nov 2010, 21:23

Go to page    1   2    Next  [ 26 posts ]

Display posts from previous: Sort by

m05#06

 new topic post reply Question banks Downloads My Bookmarks Reviews Important topics

Moderator: Bunuel

 Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.