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unit-4-decimal-fractions

Unit-4 Decimal Fractions

In this unit we shall consider Decimal fractions.

A motor driven pump discharges 560 litres of water in 2.5 minutes. How long would it take to discharge 10900 litre of water.





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Learning Pundits Content Team

Written on Apr 22, 2019 12:24:30 PM

Let x be the time taken by the pump to discharge 10900 litre of water in minutes. As the water is more now, motor will take more time. That means they are directly proportional.

  •  Water  Time
  •  560  2.5
  •  10900 x

That is 560/10900 = 2.5/x or x = (2.5 × 10900)/560

x = 48.6607

As the answer has more decimal places than our understanding, we round off the answer to 2 decimal places.

Hence, the motor will take 44.66 minutes ti discharge 10900 litre water.