At a loading dock, each worker on the night crew loaded 3/4 as many boxes as each worker on the day crew. If the night crew has 4/5 as many workers as the day crew, what fraction of all the boxes loaded by the two crews did the day crew load? (A) 1/2 (B) 2/5 (C) 3/5 (D) 4/5 (E) 5/8 这道题其实也不是很难,我只是对最后一句话,不太理解。 问的是合起来load的货,和白天load的比。 答案是E, 但是我觉得是8/5啊。 5/8是白天load的比上合起来的吧。 反正我对最后一句话理解的不是很好,请大家帮忙解释一下,谢谢。