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integer n

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Source: — Data Sufficiency |
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Re: integer n

by iamcste » Wed Apr 22, 2009 10:29 pm
success1111 wrote:What is the value of the integer n?
1) n(n+2) =15
2) n+2)^n =125
B

1. n can have 2 values 3 and -5

insufficient

2. Only possiibility is n=3, 5^3 =125
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Re: integer n

by success1111 » Sat Apr 25, 2009 10:55 pm
iamcste wrote:
success1111 wrote:What is the value of the integer n?
1) n(n+2) =15
2) n+2)^n =125
B

1. n can have 2 values 3 and -5

insufficient

2. Only possiibility is n=3, 5^3 =125

Thanks. OA is B.
I am somewhat weak in DS because it always takes me longer time to figure out.
Trust but verify.
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by vittalgmat » Sun Apr 26, 2009 11:31 pm
B for me as well.

approach is similar as others.

This is not one of the easy DS q.
I notice a GMAT pattern for tough questions ie.
one stmt is tough and the other is easy.

Curious. what is the source?
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by success1111 » Sun Apr 26, 2009 11:34 pm
vittalgmat wrote:B for me as well.

approach is similar as others.

This is not one of the easy DS q.
I notice a GMAT pattern for tough questions ie.
one stmt is tough and the other is easy.

Curious. what is the source?

Retired GMAT questions.
Trust but verify.
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