Please, help me ~~~

manmuma

The charge for a single room at Hotel P is 25 percentless than the charge for a single room at Hotel R and 10 percent lessthan the charge for a single room at Hotel G.  The charge for a single room at Hotel Ris what percent greater than the charge for a single room at Hotel G ?

A.     15%

B.      20%

C.      40%

D.     50%

E.    150%

My answer is 33%, but the answer is B.

zxy472820585

答案是B
注意than后面才是比较的基点

（1-25%）R=P  即 R=P/0.75
（1-10%）G=P  即 G=P/0.9

(R-G)/G=20%

manmuma

zxy472820585 发表于 2013-9-17 02:55
答案是B
注意than后面才是比较的基点

duo xie la ~~fa xian shi wo zi ji tai cu xin.......