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If a and b are two consecutive integers, then which is [#permalink]
 11 Oct 2011, 02:52
Question Stats:
75% (01:43) correct
25% (00:00) wrong based on 0 sessions
If a and b are two consecutive integers, then which is smaller.
(1) ab = 6
(2) 3^a > 1
Last edited by nonameee on 12 Oct 2011, 03:31, edited 1 time in total.
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Director
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Re: Consecutive integers: find a smaller number [#permalink]
11 Oct 2011, 02:55
1
This post received
KUDOS
My solution:
(1) ab = 6
a = 3 b = 2 ab = 6
a = 2 b = 3 ab = 6
a = -3 b = -2 ab = 6
a = -2 b = -3 ab = 6
insufficient
(2) 3^a > 1
=> a > 0
not useful
(1) + (2)
a = 3 b = 2 ab = 6
a = 2 b = 3 ab = 6
insufficient
E
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Veritas Prep GMAT Instructor
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Re: Consecutive integers: find a smaller number [#permalink]
12 Oct 2011, 03:18
nonameee wrote: My solution:
(1) ab = 6
a = 3 b = 2 ab = 6
a = 2 b = 3 ab = 6
a = -3 b = -2 ab = 6
a = -2 b = -3 ab = 6
insufficient
(2) 3^a > 1
=> a > 0
not useful
(1) + (2)
a = 3 b = 2 ab = 6
a = 2 b = 3 ab = 6
insufficient
E You are right. The answer should be (E).
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Director
Joined: 23 Apr 2010
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Re: Consecutive integers: find a smaller number [#permalink]
12 Oct 2011, 03:31
OK. thanks everyone. I will edit the the OA.
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Manager
Status: Next engagement on Nov-19-2011
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Schools: IIM, ISB, & XLRI
WE 1: B.Tech (Information Technology)
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Re: Consecutive integers: find a smaller number [#permalink]
12 Oct 2011, 08:56
For a moment I thought to revisit my notes. Luckily its E :D
_________________
GMAT is an addiction and I am darn addicted
Preparation for final battel:
GMAT PREP-1 750 Q50 V41 - Oct 16 2011
GMAT PREP-2 710 Q50 V36 - Oct 22 2011 ==> Scored 50 in Quant second time in a row 
MGMAT---- -1 560 Q28 V39 - Oct 29 2011 ==> Left Quant half done and continued with Verbal. Happy to see Q39
My ongoing plan: http://gmatclub.com/forum/550-to-630-need-more-to-achieve-my-dream-121613.html#p989311
Appreciate by kudos !!
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Director
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Re: Consecutive integers: find a smaller number [#permalink]
12 Oct 2011, 21:36
1. Not sufficient
ab=6
a---b
3---2 a>b
2----3 b>a
2. Not sufficient
3^a >1
=>a>0 and can be 1 , 2,3.....
together, Not sufficient
a>0 and ab=6
a=1,b=6 b>a
a=3,b=2, a>b
Answer is E.
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Re: Consecutive integers: find a smaller number
[#permalink]
12 Oct 2011, 21:36
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