问题标题:
一道有关工作效率的数学问题,好困惑,TapAcanfillawatertankin25minutes,andTapBcanfillthesametankin20minutes.(a)Ifthevolumeofthetankis5000cm^3,findtherateofflowofwater(incm^3/min)for(i)TapA,and(ii)TapB,(b
问题描述:
一道有关工作效率的数学问题,好困惑,
TapAcanfillawatertankin25minutes,andTapBcanfillthesametankin20minutes.
(a)Ifthevolumeofthetankis5000cm^3,findtherateofflowofwater(incm^3/min)for
(i)TapA,and
(ii)TapB,
(b)Bothtaps(TapAandTapB)areusedtofillupthetankatthesametime.
(i)Calculatethetotalvolumeofwaterinthewatertankafter10minutes.
(ii)WillthewateroverflowifbothTapAandTapBareturnonfor10minutes.
范冰冰回答:
【题目】单开龙头A用25分钟可以灌满水池,而单开龙头B灌满同样的水池要用20分钟.(a)若水池容积为5000立方厘米,求出(i)龙头A的流速,以及(ii)龙头B的流速;(b)若同时打开龙头A和龙头B,(i)计算10分钟后水池中水的总体积...
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