有一道GRE的数学题求详细讲解：RTThe advertisd rate for roaming harges is 0.002 _其他解答

有一道GRE的数学题求详细讲解：
RT
The advertisd rate for roaming harges is 0.002 cents pe second.What is that in dollars per hour?
0.072

人气：126 ℃　时间：2020-05-24 09:53:38

解答

就直接进行单位换算就好啦,1 dollar=100 cents,1 hour=3600 second
0.002 cents pe second=0.002/100*3600=0.072 dollars per hour