Math, asked by shubhamkkarna9370, 1 year ago

Pipes a and b fill a tank in 15 hrs and 20 hrs respectively. While a third pipe c can empty the full tank in 25hrs. All the three pipes are opened in the beginning. After 10hrs,c is closed. In how much time, will the tank be full?

Answers

Answered by mukesh777
0

in 12hours

or more 2 hours required after c is closed

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