Maths, physics, science

A spherical tank in a petro-chemical plant has a radius of 5m.
If liquid is entering the tank at a rate of 1500 litres per second and
the depth is 3m how long will it take to fill the tank? Give your
answer in seconds.

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  1. rate=volume(time)
    rate*time=volume
    time=volume/rate= 1.5m^3/(PI*25*3) seconds

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