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29.03.2020 •
Mathematics
A swimming pool has to be drained for maintenance. The pool is shaped like a cylinder with a diameter of 10m and a depth of 1.4m. Suppose water is pumped out of the pool at a rate of 18 m3 per hour. If the pool starts completely full, how many hours will it take to empty the pool?
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Ответ:
6.1 hrs
Step-by-step explanation:
Volume of the cylinder = pi * (10/2)^2 * 1.4 m^3 = 109.956 m^3
So, time required = 109.953/18 hrs = 6.108 hrs ≈ 6.1 hrs
Ответ: