国际顶尖MBA申请交流平台--TOPWAY MBA

标题: TTGWD11-13 [打印本页]

作者: sunnyspring 时间: 2006-9-10 09:32 标题: TTGWD11-13

Q13:

On a certain day, Tim invested $1,000 at 10 percent annual interest, compounded annually, and Lana invested $2,000 at 5 percent annual interest, compounded annually. The total amount of interest earned by Tim’s investment in the first 2 years was how much greater than the total amount of interest earned by Lana’s investment in the first 2 years?

A. $5

B. $15

C. $50

D. $100

E. $105 \

Answer: A算了N遍还是得105，

能不能帮着算一下啊？我那里错了？1000*（1+0。1）^2-1000-2000*(1+0.05^2)

作者: liuxiaolan89 时间: 2006-9-10 12:56

should be 1000*（1+0。1）^2-1000 减去2000*(1+0.05)^2-2000

作者: sunnyspring 时间: 2006-9-13 12:58

thanks a lot !!!!

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