天山 6-Q8 math

In 1997 there were 300 femal employees at Company C. If the number of female employees at Company C increased by 60 percent from 1997 to 1987, by what percent did the number of female employees at Company C increase from 1987 to 1997?

(1) From 1977 to 1997 the number of female employees increased by 200 percent at Company C

(2) In 1977 there were 100 female employees at Company C.

ANS

求教NN們..我看不太懂這題,,而且覺得年代怪怪的

明显的打字错误，题目第一个应该是1977，第二个是from 1977 to 1987，问1987 to 1997。

我以前见过，题目本身不难，就是有错误而已。