Total exports of company A for all the years are approximately what per cent of the total exports of company B for all the years?
A) 75
B) 128
C) 139
D) 68
E) 72
Correct Answer: E
$ \therefore $ Required percentage $ =\frac{2800}{3900}\times 100 $ % $ =\frac{2800}{39} $ % =71.79487% $ \approx $ 72%