Re: [計量] 在官網上找到的題目?
※ 引述《shenglan (拼了!GRE)》之銘言：
: 1.In a certain year, Minnesota produced 2/3 and Michigan produced 1/6
: of all the iron ore produced in the United States. If all the other
: states combined produced 18 million tons that year, how many million
: tons did Minnesota produce that year?
: a)27 b)36 c)54 d)72 e)162
: answer is d
先算出other states 等於 1/6
知道1/6 就是 18 million
回來算Minnesota 的 2/3=4/6
18 million * 4 = 72 million
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Minnesota Michigan other states all
2/3 + 1/6 + ? = 1
(4/6) (1 - 2/3 - 1/6)= 1/6
? + ? + 18 million = ?
4*18 1*18 6*18
=72 million =18 million =108 million
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05/16 02:55, , 1F
05/16 02:55, 1F
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