[問題]GWD24-Q21

[hccill]

Q21.

If P and R are positive, is 25 percent of P equal to 10 percent of R?

(1)R is 150 percent greater than P

(2)P is 60 percent less than R

答案是D

我的想法是:
由題目=>0.25P=0.1R=>R=2.5P

由(1)R>1.5P=>不充分,因為R不一定等於2.5P(可能等於,可能不等於)

由(2)P=0.4R=>R=2.5P=>充分

所以答案應該是B吧?!

還是我想錯了呢?

還請各位大大指導一下~

感恩~

[FrankChang]

你的(1)想錯了,R以P的150%大於P,
R=P(1+150%)=2.5P充分,跟你(2)的想法一樣,只是一個是大於一個是小於.

[hccill]

又是英文阿~
感謝這位大大的拔刀相助~
感恩喔~