test 38 #13

[dunkin77]

Hi,

The answer is E) - can anyone explain pls?

[jayhawk2001]

Hi,

The answer is E) - can anyone explain pls?

Consider, x to be the number of boxes and w to be the number of
workers in the day crew.

For the day crew: boxes * people = xw

For the night crew: boxes * people = 3/4x * 4/5w

So, % of day crew = xw / (xw + 3/4x*4/5w) = 5/8