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

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 Are you sure you've correctly transcribed this question? Cheers, Brent

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 I'm with Brent. If a and b are positive integers, we can't have (2a)^b = 23

DavidG@VeritasPrep wrote: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 I'm with Brent. If a and b are positive integers, we can't have (2a)^b = 23 (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: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 I'm with Brent. If a and b are positive integers, we can't have (2a)^b = 23 I was thinking that perhaps Joy intended to write 32 instead of 23, but the answer choices don't work for that anyway.

Brent@GMATPrepNow wrote:DavidG@VeritasPrep wrote: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 I'm with Brent. If a and b are positive integers, we can't have (2a)^b = 23 I was thinking that perhaps Joy intended to write 32 instead of 23, but the answer choices don't work for that anyway. Perhaps it's (2^a)^b = 32 and we're looking for (2^a) * (2^b)?

DavidG@VeritasPrep wrote:Brent@GMATPrepNow wrote:DavidG@VeritasPrep wrote: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 I'm with Brent. If a and b are positive integers, we can't have (2a)^b = 23 I was thinking that perhaps Joy intended to write 32 instead of 23, but the answer choices don't work for that anyway. Perhaps it's (2^a)^b = 32 and we're looking for (2^a) * (2^b)? That would make sense (at least it'd work with the answer choices) 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@GMATPrepNow wrote:DavidG@VeritasPrep wrote:Brent@GMATPrepNow wrote:DavidG@VeritasPrep wrote: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 I'm with Brent. If a and b are positive integers, we can't have (2a)^b = 23 I was thinking that perhaps Joy intended to write 32 instead of 23, but the answer choices don't work for that anyway. Perhaps it's (2^a)^b = 32 and we're looking for (2^a) * (2^b)? That would make sense (at least it'd work with the answer choices) Aside: this would make for an interesting question type: try to determine what the poster intended when he/she made an error when posting! GMAT-Rorschach? The Gschach?

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