GMAT-OG-11th-Math-Review.PDF 数学题讨论

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                GMAT-OG-11^th-Math-Review.PDF

138.    At a loading dock, each worker on the night crew loaded ¾ as many boxed 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)   ½

(b)   2/5

(c)   3/5

(d)   4/5

(e)   5/8

请问答案为什么会是e?

234.    In a certain game, a large container is filled with red, yellow, green, and blue beads worth, respectively, 7, 5, 3, and 2 points each.  A number of beads are then removed from the container.  If the product of the point values of the removed beads is 147,000, how many reds beads were removed?

(a)   5

(b)   4

(c)   3

(d)   2

(e)   0