A residential

A residential colony has a population of 5400 and 60 litres of water is required per person per day. For the effective utilization of rain water, they constructed a water reservoir measuring 48m × 27m × 25m to collect the rain water. For how many days, the water of this tank is sufficient, if during rain the height of water level is 5 m?

Correct result:

d1 =  100 d
d2 =  20 d

Solution:

d=5400 60/1000=324 m3/d V1=48 27 25=32400 m3 d1=V1/d=32400/324=100 d
V2=48 27 5=6480 m3 d2=V2/d=6480/324=20 d



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