TTGWD9-34一直认为是B,为什么是C

jessiebetty · 发表于 2006-8-6 15:40:00

Q34:

What is the value of the integer n?

(1) n(n + 2) = 15

(2) (n + 2)ⁿ = 125

一直认为是B,为什么是C

[此贴子已经被作者于2006-8-6 19:28:13编辑过]

lexie · 发表于 2006-8-6 15:53:00

vote for B

(1) -5*(-5+2)=15 3*5=15 n=3 or -5

(2) (3+2)^3=125 n=3

couldn't think up some other possible n, need to be updated, thx

hitlzc · 发表于 2006-8-6 17:53:00

请在标题中标清TTGWD9-34,以便后来者查询,谢谢配合!

所属分类: GMAT考试