有含糖6%的糖水900克,要使其含量加大到10%,需要加糖多少克?
人气:470 ℃ 时间:2019-09-29 06:23:56
解答
水的质量为:
900×(1-6%)=846(克);
新的糖水的质量为:
846÷(1-10%)=940(克);
所以需要加糖:
940-900=40(克).
答:需要加糖40克.
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