A village having a population of 4000 requires 150 litres of water per day. It has a tank measuring 20m x 15m x 6m. For how many days will the water ofthis tank last? Please explain.
Answers
Given
l = 20m
b = 15m
h = 6m
capacity= 20m×15m×6m = 1800 cubic metres
1 metre = 100 cm
then 1800 metres = 1800×100 = 1,80,000 cm
1000 cubic cm = 1 litre
then 180000cm = 180000/1000 = 180 litres
Water Requirement Per day = 150 litres
No.of days the water tank will last for =
180/150 = 1.2 days
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.