Question

a residential Colony has a population of 5400 litres of water is required per person per day for the effective Utilization of rainwater they constructed of a water reservoir measuring 48 metre into 27 metre into 25 metre to collect the rainwater for how many the water of this tank is sufficient if during rain the height of water level is 5metre

Answer 1

Solution:-

The water consumption per person per day is not mentioned. I have solved this question earlier also. In that question the water consumption per person per day was 60 liters. So, I am assuming the same in this question also and solving this question.

Population of the residential colony = 5400 
Water consumption per person per day = 60 liter
So, total water consumption per day per person = 60*5400
= 324000 liter

Length of the reservoir = 48 m
Breadth of the reservoir = 27 m
Height of the reservoir = 25 m

Given that during the rainy season the height of water level is 5 m

Volume of water stored in the reservoir with height of water 5 m = Total water stored in the reservoir 
So, the total water stored in the reservoir = 48*27*5
= 6480 cm³

1 m³ = 1000 liter
6480 m³ = 6480*1000
= 6480000 liter

Number of days for water is sufficient = Total water in the reservoir/total water consumption per person per day
⇒ 6480000/324000
=  20 days

So, the water stored in the reservoir will be sufficient for 20 days.

Answer.

Answer 2

required answer is 20 days