GWD4-27 请教

Q27: D

Of the cans of peaches inspected yesterday at a certain plant, 1.5 percent failed to pass inspection.  Of the cans that failed inspection, were incorrectly labeled and the rest were dented.  If all of the cans that were incorrectly labeled or dented failed inspection, how many of the cans of peaches inspected yesterday at the plant were dented?

(1)   450 of the cans of peaches inspected yesterday at the plant failed to pass inspection.

(2)     29,550 of the cans of peaches inspected yesterday at the plant passed inspection.

这道题怎么没人问啊？蓝色字部分请帮我翻译一下（最好全部翻译一下）。

怎么解答这道题及其类似的 overlaping的题呢？

谢谢

Q28:

A car traveling at a certain constant speed takes 2 seconds longer to travel 1 kilometer than it would take to travel 1 kilometer at 75 kilometers per hour.  At what speed, in kilometers per hour, is the car traveling?

A.   71.5

B.    72

C.    72.5

D.   73

E.    73.5

还有这道！

设此未知速度为x。(1*60*60)/x=(1*60*60)/75+2

Q27:

Of the cans of peaches inspected yesterday at a certain plant, 1.5 percent failed to pass inspection.  Of the cans that failed inspection, were incorrectly labeled and the rest were dented.  If all of the cans that were incorrectly labeled or dented failed inspection, how many of the cans of peaches inspected yesterday at the plant were dented?

(1)   450 of the cans of peaches inspected yesterday at the plant failed to pass inspection.

(2)     29,550 of the cans of peaches inspected yesterday at the plant passed inspection.

我复制过来有蓝色啊，再试试

我知道了，做题的时候肯定是发神经了