题目:
The charge for a single room at Hotel P is 25 percent less than the charge for a single room at Hotel R and 10 percent less than the charge for a single room at Hotel G . The charge for a single room at Hotel R is what percent greater than the charge for a single room at Hotel G ?
选项:
A、15%
B、20%
C、40%
D、50%
E、150%
答案:
B