GMAT
题目
Charles is able to husk 216 ears of corn in hours. What was his rate per minute?
解析
2.5小时 = 150分钟，这段时间内制作了216个耳饰。
每分钟的制作效率 = \(\frac{216}{150} = 1.44\)
答案：A
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公众号Charles is able to husk 216 ears of corn in hours. What was his rate per minute?
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