求问一道GRE数学题,答案为540,怎么算的?
The enrollments at college X and college Y both grew by 8 percent from 1980 to 1985 .if the enrollments at college X grew by 800 and the enrollments at college Y grew by 840,the enrollments at college Y Was how much greater than the enrollments at college X in 1985?
人气：270 ℃ 时间：2020-10-01 09:25:39
解答
800除以8%等于10000；这是X大学1980的人数,加上800=10800是1985年的人数
840除以8%等于10500；这是Y大学1980的人数,加上840=11340是1985年的人数
相减就是相差的人数540
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