A housing society consisting of 500 people needs 20 litre of water per person per day. The cylindrical supply tank is 50m high and has a diameter of 28 m. For how many days will the water in the tank last for the society?
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Answered by
9
The water in the tank can last for 3080 days.
Total number of people in the housing society = 500
Volume of water needed by a person per day = 20 l
Radius of the water tank = r = 28/2 = 14 m
Heigth of the tank = h = 50 m
Volume of the tank = πr² h
= 22/7 × 14 × 14 × 50
= 30800m³
= 30800000 l
Number of days for which the water in the tank will last = volume of tank/ (water used by a person per day × total number of people)
= 30800000 / 20 × 500
= 3080
Answered by
0
Answer:
3080
22/7 *14*14*50
=30800m^3
=convert into litre
=30800000/20*50
=3080days
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