It takes 4 hrs for pipe A to empty a 100 liter tank; if another pipe B which is double the size of pipe A is employed, how long will it take to empty the tank? Sol. Since the Pipe is double the size,

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1 Answers

Since the Pipe is double the size,

it will take1/2 time of the time taken by the smaller pipe
Therefore 1/2x4 =2 hrs

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