Q. If a and b are positive integers and (2a)^b = 23, what is the value of 2^a2^b?
A) 6 B) 8 C) 16 D) 32 E) 64
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Brent@GMATPrepNow
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Are you sure you've correctly transcribed this question?Joy Shaha wrote:Q. If a and b are positive integers and (2a)^b = 23, what is the value of 2^a2^b?
A) 6 B) 8 C) 16 D) 32 E) 64
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Brent
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DavidG@VeritasPrep
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I'm with Brent. If a and b are positive integers, we can't have (2a)^b = 23Joy Shaha wrote:Q. If a and b are positive integers and (2a)^b = 23, what is the value of 2^a2^b?
A) 6 B) 8 C) 16 D) 32 E) 64
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DavidG@VeritasPrep
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(Unless the 'a' is intended to represent the units digit of some number in the 20's. But that would have to be made explicit.)DavidG@VeritasPrep wrote:I'm with Brent. If a and b are positive integers, we can't have (2a)^b = 23Joy Shaha wrote:Q. If a and b are positive integers and (2a)^b = 23, what is the value of 2^a2^b?
A) 6 B) 8 C) 16 D) 32 E) 64
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Brent@GMATPrepNow
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I was thinking that perhaps Joy intended to write 32 instead of 23, but the answer choices don't work for that anyway.DavidG@VeritasPrep wrote:I'm with Brent. If a and b are positive integers, we can't have (2a)^b = 23Joy Shaha wrote:Q. If a and b are positive integers and (2a)^b = 23, what is the value of 2^a2^b?
A) 6 B) 8 C) 16 D) 32 E) 64
Brent Hanneson - Creator of GMATPrepNow.com
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DavidG@VeritasPrep
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Perhaps it's (2^a)^b = 32 and we're looking for (2^a) * (2^b)?Brent@GMATPrepNow wrote:I was thinking that perhaps Joy intended to write 32 instead of 23, but the answer choices don't work for that anyway.DavidG@VeritasPrep wrote:I'm with Brent. If a and b are positive integers, we can't have (2a)^b = 23Joy Shaha wrote:Q. If a and b are positive integers and (2a)^b = 23, what is the value of 2^a2^b?
A) 6 B) 8 C) 16 D) 32 E) 64
GMAT/MBA Expert
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Brent@GMATPrepNow
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That would make sense (at least it'd work with the answer choices)DavidG@VeritasPrep wrote:Perhaps it's (2^a)^b = 32 and we're looking for (2^a) * (2^b)?Brent@GMATPrepNow wrote:I was thinking that perhaps Joy intended to write 32 instead of 23, but the answer choices don't work for that anyway.DavidG@VeritasPrep wrote:I'm with Brent. If a and b are positive integers, we can't have (2a)^b = 23Joy Shaha wrote:Q. If a and b are positive integers and (2a)^b = 23, what is the value of 2^a2^b?
A) 6 B) 8 C) 16 D) 32 E) 64
Aside: this would make for an interesting question type: try to determine what the poster intended when he/she made an error when posting!
Brent Hanneson - Creator of GMATPrepNow.com
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DavidG@VeritasPrep
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GMAT-Rorschach? The Gschach?Brent@GMATPrepNow wrote:That would make sense (at least it'd work with the answer choices)DavidG@VeritasPrep wrote:Perhaps it's (2^a)^b = 32 and we're looking for (2^a) * (2^b)?Brent@GMATPrepNow wrote:I was thinking that perhaps Joy intended to write 32 instead of 23, but the answer choices don't work for that anyway.DavidG@VeritasPrep wrote:I'm with Brent. If a and b are positive integers, we can't have (2a)^b = 23Joy Shaha wrote:Q. If a and b are positive integers and (2a)^b = 23, what is the value of 2^a2^b?
A) 6 B) 8 C) 16 D) 32 E) 64
Aside: this would make for an interesting question type: try to determine what the poster intended when he/she made an error when posting!
