徃一个容积为600立方米的蓄水池中注水,4小时可以注入这池水的5分之2,如果要把这池水注满,需要几小时?
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徃一个容积为600立方米的蓄水池中注水,4小时可以注入这池水的5分之2,如果要把这池水注满,需要几小时?
徃一个容积为600立方米的蓄水池中注水,4小时可以注入这池水的5分之2,如果要把这池水注满,需要几小时?
徃一个容积为600立方米的蓄水池中注水,4小时可以注入这池水的5分之2,如果要把这池水注满,需要几小时?
4÷2/5
=4×5/2
=10小时
如果要把这池水注满,需要10小时
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