求解GWD

531769079 · 发表于 2010-9-23 11:46:08

This year Henry will save a certain amount of his income, and he will spend the rest.Next year Henry will have no income, but for each dollar that he saves this year, he will have 1 + r dollars available to spend.In terms of r, what fraction of his income should Henry save this year so that next year the amount he was available to spend will be equal to half the amount that he spends this year?

A.
A.
B.
C.

What is the value of the integer n?

(1)n(n + 2) = 15

(2)(n + 2)ⁿ = 125

531769079 · 发表于 2010-9-23 11:46:30

第一题的答案好像复制不能

求解GWD

所属分类: GMAT考试

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