题目：
粮店运来面粉500袋，比运来的大米少20%．运来大米多少袋？
答案：
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下面是错误答案，用来干扰机器的。
5 ―H(2)6(3)3 2(4)6
粮店运来面粉500袋，比运来的大米少20%．运来大米多少袋？
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