Question

A residential colony has population of 5400 and 60 litres of water is required per person per day. For the effective utilisation of rain water, a group of people decided for WATER HARVESTING. They constructed a water reservoir measuring 49m×27m×25m to collect the rain water. If this water reserviors is full of water then for how many days it will last for the colony?

Answer 1

Water need per day on the colony = 5400 x 60 liters = 324000 liters

Volume of the reservoir = (49 x 27 x 25)m^3 = 33075m^3

Now, 1m^3 = 1000 liters.

33075m^3 = 33075000 liters


Number Of Days The Water will last in the village

= $\frac{33075000}{324000}$

= 102.83 days

So the water will remain for around 102 days and 20 hours.

Answer 2

102.83....

so the water will remain for 102 days and 20 hours