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Question 21
A city has an average demand of water of 33,000 Lts. of water which lasts for 50 days. But if some people enter the city, then the demand increases to 37,000 Lts. of water for which supply will lasts 35 days. Give an estimation of how much minimum water should be used daily so that it could last 50 days ?
Solution
Water capacity for 50 days is
33000 x 50= 1650000.-----------(1)
water capacity for 35 days is
37000 x 35= 1295000------------(2)
Let the minimum water to be used is K litres
so, K x15=355000
K=$$\ \frac{355000\ }{15}$$
K= 23666.66litres.
Therefore, estimation of how much minimum water should be used daily so that it could last 50 days is 23666.66liters.
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