Question

A village having a population of 4000, Requires
150 liters of water per head per day. It has
a tank measuring 20m x 15m x 6 m. for
how many days will the water of this tank
left ?​

Answer 1

Answer:

3 days

Step-by-step explanation:

volume of water tank =(20×15×6)m^3=1800m^3

volume of water required per head per day=150 litres=150×1000cm^3

=150000cm^3

volume of water required for 4000 persons per day=(4000×150000)cm^3

converting in m^3

4000×150000÷100×100×100=600m^3

so 1800m^3 water will sufficient for

1800÷600 days =3 days

Answer 2

Answer: 3 days

Step by step explanation:

Given,

Quantity of water in tank = (20 ×15×6) = 1800m³

Population of village = 4000

Water required = 150/per head per day              

Quantity of water required by the village per day:

                                   = ( 4000 × 150) liters

                                   = 4000×150 ÷ 1000 m³

                                   =  600 m³

No. of days which the water will last

                                  = 1800÷600

                                  = 3 days

Explanation:

This question can be solved by 2 methods, I have solved this question in very simple way. In this question, There was the Given population and water requires per day.

And, There were a tank, which was wearing of 20 meters, 15 meters and 6 meters. We First find, Quantity of water in tank = (20 ×15×6) = 1800m³.

Then, We find Quantity of water required by the village per day.

= ( 4000 × 150) liters

= 4000×150 ÷ 1000 m³

= 600 m³.

And, Finally we divide it with 600 with 1800. And, we get 3 days.