Q8:ds
In 1997 there were 300 female employees at company C, if the number of female employees increased by 60% from 1997 to 1987, by what percent did the number of female employees at company C increased from 1987 to 1997?
1) from 1977 to 1997, the number of female employees in company C increased by 200%;
2) in 1977 there were 100 female employees at company C.
答案:D
经大家讨论后是提干有问题。
我的疑问是:1 increase to和increase by的区别?
2 the number of female employees increased by 60% from 1997 to 1987
的意思是:female97/female98=1+60%
the number of female employees at company C increased from 1987 to 1997
的意思是:1-female87/female97 (这里也有个小问题,为什么上句还用increase,应该是decrease吧!)
是这样吗?想确定一下!总是不知道什么做分母!:)
先谢谢xdjm,nn,盼解答!:) |