請教GWD 24-21

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.

  Answer : D

但是我算式答案B耶..

R = 1.5P  所以0.25P = 0.15 R (不充分)

P = 0.4R   (充分)

請指教

是greater than耶~~~

那假如是200percent的話

不是依然不充分嗎

我真的不明白耶    請指教      感謝萬分

I  was also wrong in this question, however I realized:

1. P(1+150%)=R; clearly P is not equal to 0.4R

2. P=0.4*R, clearly P is equal to 0.4 R

Thus, both options can draw a sole result, answer is D

這題我還是有疑問 拿出來跟大家再討論討論

1) R = 1.5P, then 0.1R = 0.15P

2) P = 0.4R, then 0.1R = 0.25P

這裡難道沒有人覺得奇怪 0.1R = 0.15P = 0.25P? 雖說P = 0可以同時satisfy這兩個條件 但一般選D的時候兩個condition應該會指向同一個答案吧 請nn開導