Number

[Joy Shaha]

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@GMATPrepNow]

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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Cheers,
Brent

[DavidG@VeritasPrep]

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]

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.)

[Brent@GMATPrepNow]

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.

[DavidG@VeritasPrep]

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)?

[Brent@GMATPrepNow]

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!

[DavidG@VeritasPrep]

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?