A village having the population of 4000 requires 150 litres of water per head per day .It has a tank measuring 1.5m length and 1.25m height and 0.5m breadth . For how many days will the water of this tank last ?
Hint : you need to find the volume of the tank . please do the working :)
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Total persons=4000
Water required per person=150 litre
Total water required=4000*150=600000
Volume of tank =1.5*1.25*0.5=0.3125 metre cube
1 metre cube =1000 litre
0.3125=3125 litre
Number of days water will last =3125/600000
=0.00520833 days answer
(I know the no. of days is very short that is because the dimensions of the tank are very small)
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