有3个自然数,甲和乙比为3比5,乙于丙比为4比7,三个数和是201甲数是什么?急.
人气：443 ℃ 时间：2019-11-01 05:57:28
解答
36.
设乙为X 甲为3x/5 丙为7x/4
X+3X/5+7X/4＝201
X＝201*20/67＝60
甲为3x/5＝180/5＝36
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