GWD05-Q33

[凱薩琳]

The surface of a certain plant reflects 80 percent of the light that strikes it. The clouds around the plant then absorb 40 percent of the reflected light. What percent of the light that strikes the planey is reflected from the surface and passes through the clonds without being absorbed?

A.32%
B.40%
C.48%
D.60%
E.88%

Ans:C
Why not D??

[StanleyHuang]

有 80% 被反射，而被反射的又有 40% 被雲吸收，所以剩下的就只有
80%*60%=48%