【GMAT考满分数学PS题库】. If in a certain population, people are born at a_真题_答案

PREP07 Test 1 - 数学PS - 64

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. If in a certain population, people are born at an average rate of 9 people every 2 seconds and people die at an average rate of 3 people every 2 seconds, by approximately how many people does the population increase in 1 day?

A17,280
B25,920
C129,600
D259,200
E388,800

正确答案: D

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