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integers

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Source: — Problem Solving |

by Brent@GMATPrepNow » Wed Apr 16, 2014 5:36 am
sgr21 wrote:If n # z = n2 - nz - 2(z-2)n for integers n and z, what is the value of 2#2?
A) -1
B) -2
C) 2
D) 0
E) 1
Are some of those values supposed to be exponents?
If so, please use "^" to indicate this.
For example, write n2 as n^2

I have a feeling that one of more of the other terms involve exponents as well, so we need you to edit the question before it can be answered.

Cheers,
Brent
Brent Hanneson - Creator of GMATPrepNow.com
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by [email protected] » Wed Apr 16, 2014 12:13 pm
Hi sgr21,

Brent makes a good point about using proper notation in your questions.

This is a symbolism question and a fairly straight-forward one. To solve it, you'll have to follow the "instructions" in the prompt. Plug in n = 2 and z = 2 and then do the calculation. You'll have the correct answer.

GMAT assassins aren't born, they're made,
Rich
Contact Rich at [email protected]
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