Numerical math question?

2012-11-01 2:26 am
For this graph URL - http://img100.imageshack.us/img100/6300/graphm.jpg

The total growth in Revenue for the Petrochemical sector between 1992 and 1998 is equivalent to what constant annual rate of return?
a)3%
b)3.3%
c)3.6%
d)3.9%
e)Cannot say

I calculated it as
(8-6-6.7)/6.7 = 19.4%
19.4/6 = 3.23 which isn't in the options if I round it up to 1dp. So what am I doing wrong?

回答 (2)

2012-11-05 12:05 am
✔ 最佳答案
no right answer is d)3.9%
2013-12-08 7:33 pm
let X be the constant annual rate of return,
8=6.7*(1+x)^6
Then X=0.02999677299
Therefore the answer is a)3%


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