Question

A swimming pool can be filled in 8 hrs. by 4 equal
pumps. How many such pumps are required if the pool is
to be filled in 5

hrs.?

Answer 1

the number of pumps required =32÷83=32×38=4×3=12 pumps. A swimming pool can be filled in 4 hours by 8 pumps of the same type.

Answer 2

Answer:

the number of pumps required =32÷83=32×38=4×3=12 pumps. A swimming pool can be filled in 4 hours by 8 pumps of the same type.