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A leak can empty a full tank in 10 hours. A tap filling 4 litres a minute is opened; now the tank empties in 15 hours. What is the capacity of the tank?

Class 8Pipes and CisternsDirect and Inverse Proportions
  • A4,800 litres
  • B3,600 litres
  • C7,200 litres
  • D6,000 litres

Step-by-Step Solution

Tap rate of the tank per hour = 240 litres an hour. Capacity L.
Answer: C) 7,200 litres

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