Question

10 persons can fill up a water tank in 20 hours how many persons are needed to fill it in 5 hours i want the solution​

Answer 1

Answer:

Let the required person be x

$10 \times 20 = x \times 5$

$= > x = \frac{10}{5} \times 20 \\ = > 40$

Hence , 40 persons are required.