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## exponent mystery

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nafiul9090 Really wants to Beat The GMAT!
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exponent mystery Tue Mar 13, 2012 5:59 pm
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• Lap #[LAPCOUNT] ([LAPTIME])
if x is not equals to 0, what is the value of (x^m/x^n)^5

i) n-m=2
ii) x^2= 1/4

oa comes later

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killer1387 GMAT Destroyer!
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Tue Mar 13, 2012 7:47 pm
nafiul9090 wrote:
if x is not equals to 0, what is the value of (x^m/x^n)^5

i) n-m=2
ii) x^2= 1/4

oa comes later
(x^m/x^n)^5

1) (x^(m-n))^5=(x^(-2))^5
Insufficient

2) insufficient

1& 2
sufficient

hence C

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