同学们收集图片,收集的名山图片占60%,河流图片占30%.名山图片比河流图片多30张,一共收集了多少张图片?
人气:235 ℃ 时间:2020-04-06 00:54:48
解答
30÷(60%-30%)
=30÷30%,
=100(张).
答:一共收集图片100张.
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