一瓶盐水，盐和水的重量比是1：24，如果再放入75克水，这时盐与水的重量比是1：27，原来瓶内盐水重多少克？
人气：442 ℃ 时间：2019-09-09 17:20:46
解答
75÷（27-24），
=75÷3，
=25（克）；
25÷
=625（克）；
答：原来瓶内盐水重625克．
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