小李在计算有余数的除法时,把被除数113错写成131,结果商比原来多3,但余数恰巧相同,该题的余数是: A.6 B.5 C.4 D.3

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问题 小李在计算有余数的除法时,把被除数113错写成131,结果商比原来多3,但余数恰巧相同,该题的余数是: A.6 B.5 C.4 D.3
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答案 B
解析 设余数是m、除数是y,则(131-m)÷y=(113-m)÷y+3,可得y=6。113÷6=18……5,则该题余数是5。

相关内容:小李,余数,除法,被除数,结果,商比

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