Mathematics
Senior High
この問題は、濃度算の式でやるとどのようにすればいいのですか？
教えていただきたいです。
練習問題
13%の食塩水と 11%の食塩水を3:1の割合で混合すると
何%の食塩水になるか。
15%
2 6%
37%
4 8%
59%
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