A filter

It is a pool with a volume of 3500 liters. The filter filters at 4m cubic per hour. How many minutes would it filter the entire pool?

Correct result:

t =  52.5 min

Solution:

V=3500 l→ m3=3500/1000  m3=3.5 m3 Q=4 m3/h  T=V/Q=3.5/4=78=0.875 h  t=T→ min=T⋅ 60  min=0.875⋅ 60  min=52.5 min=1052 min

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