A village,having a population of 4000,require | vedclass

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(A) Length of the tank $(l) = 20 \,m$.Breadth of the tank $(b) = 15 \,m$.Height of the tank $(h) = 6 \,m$.Volume of the tank $= l 	imes b 	imes h =

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$3$

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(A) Length of the tank $(l) = 20 \,m$.Breadth of the tank $(b) = 15 \,m$.Height of the tank $(h) = 6 \,m$.Volume of the tank $= l 	imes b 	imes h = 20 	imes 15 	imes 6 \,m^3 = 1800 \,m^3$.Since $1 \,m^3 = 1000 \,l$,the capacity of the tank $= 1800 	imes 1000 \,l = 1,800,000 \,l$.Village population $= 4000$.Water required per head per day $= 150 \,l$.Total water required per day $= 4000 	imes 150 \,l = 600,000 \,l$.Let the number of days the water will last be $x$.Total water required for $x$ days $= 600,000 	imes x$.Equating the total capacity to the total requirement: $600,000 	imes x = 1,800,000$.$x = \frac{1,800,000}{600,000} = 3$.Thus,the water in the tank will last for $3$ days.

$A$ village,having a population of $4000$,requires $150$ litres of water per head per day. It has a tank measuring $20 \,m \times 15 \,m \times 6 \,m$. For how many days will the water of this tank last?

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