Question

Question 8
A small village, having a population of 5000, required 75 L of water per head per day. The village has got an overhead tank of measurement $40m\times 25m\times 15m$. for how many days will the water of this last?

Answer 1

Given, total population of the small village = 5000

Water required per head per day = 75 L

Volume of the water required for the small village per day $=5000\times 75=375000L$

$=\frac{375000}{1000}{m}^3=375L$ $[\because 1m^3=1000L]$

Total capacity of water in the overhead tank = Volume of the overhead tank

$=40\times 25\times 15=15000m^3$

$\therefore$ Number of days $=\frac{Totalcapacityofwaterinoverspreadtank}{Volumeofwaterrequiredforasmallvillageperday}$

$=\frac{15000}{375}=40days$

Hence, the water of this tank will last for 40 days.