TS ICET 23 May 2019 Shift 2 Paper

Question : 96 of 200

Marks: +1, -0

A pipe can fill a tank in 15 hours. Another pipe can empty the full tank in 20 hours. If both the pipes are opened together the number of hours required to fill the tank is

Validate

Solution:

Part of the tank filled in one hour

=1/5-1/20

i.e.

1/60

The number of hours required to fill the tank is 60 hours.

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