pipe p can fill a tank in in 4 her and another pipe can empty it in 5
if both pipes are open at the same time in how much time will the take be full
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Class 11
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>>Pipe A can fill an empty tank in 5 hours
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Pipe A can fill an empty tank in 5 hours while pipe B can empty the fill tank in 6 hours. If both are opened at the same time in the empty tank, how much time will they take to fill it up completely?
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Solution
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Pipe A can billion empty tanks in 5hrs
⇒ billed by pipe A in hr =
5
1
Pipe B can fill an empty tank in 6hrs.
⇒ Part filled by pipe B in 1hr=
6
1
∴ tank filled by pipe AandB together in 1 hr =
5
1
−
6
1
=
30
1
∴ the tank can be filled in 30hrs.
Answer:
TIME AND WORK, PIPES AND CISTERNS
A pipe can fill a tank in 4 hours and another pipe can empty the same tank in 6 hours.