A town has a population of 4000 requires 140 liters of water per head. It has a tank measuring 18m x 12m x 8m. The water of this tank will suffice for ____ days?
Correct Answer: 3
Explanation:
Water required = 4000 x 140 = 560000 lit = 560 cu.m (1 cu.m = 1000 lit)
Volume of tank = 18 x 12 x 8 = 1728 cu.m
Water of this tank will suffice for = 1728/560 = 3 days.
