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M13-32

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M13-32  [#permalink]

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New post 15 Sep 2014, 23:50
1
2
00:00
A
B
C
D
E

Difficulty:

  85% (hard)

Question Stats:

45% (00:45) correct 55% (01:23) wrong based on 85 sessions

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Re M13-32  [#permalink]

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New post 15 Sep 2014, 23:50
Official Solution:


Statements (1) and (2) combined are insufficient. Consider:

\(a = 3\), \(b = 2\). \(a^b = 3^2 = 9 \gt b^a = 2^3 = 8\). The answer is "yes".

\(a = 4\), \(b = 3\). \(a^b = 4^3 = 64 \lt b^a = 3^4 = 81\). The answer is "no".


Answer: E
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Re: M13-32  [#permalink]

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New post 08 Apr 2018, 21:26
For values less than zero even both the statements are not enough.
check with values less than zero
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Re: M13-32  [#permalink]

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New post 02 Nov 2018, 09:30
You can save a lot of time on this one when you start by picking numbers that satisfy both statements at the same time as Bunuel did.. I wonder if this should be the default state when facing DS questions where picking numbers is obviously the best way to go - any advice on this? Or what specific signaled you in this question that this is the best strategy?
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Re: M13-32 &nbs [#permalink] 02 Nov 2018, 09:30
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M13-32

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