integer n

[success1111]

What is the value of the integer n?
1) n(n+2) =15
2) n+2)^n =125

[iamcste]

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

[success1111]

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.

[vittalgmat]

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?

[success1111]

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.