Commercial unit of energy - class-IX

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Multiple Choice

A two kilowatt motor pumps out water from a well 10 meter deep. The quantity of water pumped out per hour  is ( g = 10 $m/s^2$)

  1. $72 \times 10^2$ kg
  2. $72 \times 10^3$ kg
  3. $72 \times 10^4$ kg
  4. $72 \times 10^5$ kg
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