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[Problem Solving]

试题详情

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

提问:

这道题上周答疑老师没有讲为什么 “设 the charge for P为 X, R=X(1+0.25), G=X(1+0.1) ”这个思路不对~ 我用这个思路算算出来的跟答案不一样~请老师讲讲哪里错了

解答:

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