English maths
It is quiet easy I think……(let the totall volumn needed to be filled is 1)The time taken by the hose to fill the pool ……2hSo the speed of the hose to fill the pool is 1/2hThe time taken by the faulty outlet to empty the pool……..10hSo the speed of the outlet to empty the pool is 1/10hThe water runs into the pool and runs out of the pool starts together.1/(1/2-1/10)=10/4=2.5h
用英语答还是用汉语答啊?用英语:I don't know.用汉语:我不知道。
sorry I don't know.
翻译成中文就很简单了1/(1/2-1/10)=1/(4/10) =1x10/4 =2.5h
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