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If a and b are two consecutive integers, then which is smaller.

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Math Expert
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Joined: 02 Sep 2009
Posts: 64250
If a and b are two consecutive integers, then which is smaller.  [#permalink]

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New post 12 Jul 2019, 00:46
00:00
A
B
C
D
E

Difficulty:

  45% (medium)

Question Stats:

56% (01:11) correct 44% (01:07) wrong based on 125 sessions

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CEO
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V
Joined: 03 Jun 2019
Posts: 2917
Location: India
GMAT 1: 690 Q50 V34
WE: Engineering (Transportation)
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Re: If a and b are two consecutive integers, then which is smaller.  [#permalink]

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New post 12 Jul 2019, 01:01
1
Bunuel wrote:
If a and b are two consecutive integers, then what is the value of the smaller of the two?

(1) ab = 6
(2) 3^a > 1


P: a and b are two consecutive integers => b =a+1 when a is smaller of the two
Q: what is the value of the smaller of the two?

#1: ab = 6
a(a+1)=6
a=2 or a = -3
NOT SUFFICIENT

#2: \(3^a > 1\)
a>0
NOT SUFFICIENT

#1 & #2:
#1: ab = 6 => a=2 or a = -3
#2: a>0
=> a=2 since a>0
SUFFICIENT

IMO C
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Re: If a and b are two consecutive integers, then which is smaller.  [#permalink]

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New post 12 Jul 2019, 10:11
Bunuel wrote:
If a and b are two consecutive integers, then what is the value of the smaller of the two?

(1) ab = 6
(2) 3^a > 1


#1
x*(x+1)=6
so x = -3 or 2
insufficient
#2
3^a>1 b not given but a is +ve
from 1 & 2
a has to be 2 sufficient
IMO C
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Re: If a and b are two consecutive integers, then which is smaller.  [#permalink]

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New post 07 Aug 2019, 02:47
1
Why are we only considering b= a+1 and not a=b+1 ?
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Re: If a and b are two consecutive integers, then which is smaller.  [#permalink]

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New post 22 Aug 2019, 03:58
I have the same question as that of Rahul

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Re: If a and b are two consecutive integers, then which is smaller.   [#permalink] 22 Aug 2019, 03:58

If a and b are two consecutive integers, then which is smaller.

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