Question

It take 12 min to fill up the tank using 2 pipes, if the pipe of smaller diameter is used for 9 min and large diameter is used for 4 min, then only half tank is fill.
1.time taken by smaller diameter pipe to fill the tank.
2. time taken by large pipe to fill the tank.
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Answer 1

FIRST OFF ALL WE HAVE TO CHECK THE QUESTION

1. It take 12 min to fill up the tank using 2 pipes, if the pipe of smaller diameter is used for 9 min and large diameter is used for 4 min, then only half tank is fill.

time taken by smaller diameter pipe to fill the tank.

time taken by large pipe to fill the tank.

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PROBLEM SOLVED