Pipes and Cisterns Practice Test 2 with solutions

Question : 35 of 40

Marks: +1, -0

in 8 hours and an outlet pipe can empty it in 5 hours. In what time will the tank be emptied if both the pipes are opened simultaneously?

Solution:

Work done by both the pipes in 1 hour =

1/{12}-1/{14}

{8-5}/{40}

3/{40}

Time taken to empty the tank =

{40}/3

13 1/3

hours.

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