Water is continuously supplied from a reservoir to a locality at the steady raye of 10000 liters per hours. When delivery exceeds demand the excess water is stored in a tank. If the demand for consecutive three hour periods is 1000, 10000, 45000, 25000, 40000, 15000, 60000 and 35000 liters respectively, what will be the minimum capacity required of the water tank (in thousand liters)to meet the demand and avoid any wastage?
  • 110
  • 230
  • 340
  • 450
Answer:- 1
Explanation:-

Solution:
We have the following table:
Period Supply Demand Excess Qty. in tank
0-3 hrs 30000 10000 20000
3-6 hrs 30000 10000 40000
6-9 hrs 30000 45000 25000
9-12 hrs 30000 25000 30000
12-15 hrs 30000 40000 20000
15-18 hrs 30000 15000 35000
18-21 hrs 30000 60000 5000
21-24 hrs 30000 35000 0
The excess quantity in tank at any time does not exceed 40000 litres, which is the required minimum capacity to avoid wastage.

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