A village, having a population of 4000, requires 150 litres of water per head per day. It has a tank measuring `20"m"xx15"m" xx 6"m"` . For how many days will the water of this tank last?

Explanation

Volume of cuboid=`l xx b xx h`
`20xx15xx6`
`1800m^3`
`1m^3`
`1000 litres`
`1800m^3`
`1800000 litres`
Water required by village
`4000xx150`
`600000 litres`
Number of days it will last=`1800000÷600000`
`3 days`