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The bath is filled from the hot tap in 23 minutes. Cool for 17 minutes. The boy turned on the hot tap first. When we need to turn on cool tap That the hot water at the moment of filling the bath is 1.5 times more than the cold?

 May 18, 2022
edited by gpgiorgi  May 18, 2022
 #1
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split the bath into 5 parts.

2/5 will be cold water and 3/5 will be hot water.

 

Hot  23*3/5 = 13.8 minutes       

Cold 17*2/5 = 6.8 minutes

 

13.8-6.8 =7 minutes

 May 19, 2022

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