A tank can be filled by two pipes in 20 minutes and 30 minutes respectively when the tank was empty, two pipes were opened. After sometime, the first pipe was stopped and the tank was filled in 18 minutes. After how much time of the start was the first pipe stopped.

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Bhanu ChaudharyProfessional

Asked: March 7, 20222022-03-07T11:23:13+05:30 2022-03-07T11:23:13+05:30

A tank can be filled by two pipes in 20 minutes and 30 minutes respectively when the tank was empty, two pipes were opened. After sometime, the first pipe was stopped and the tank was filled in 18 minutes. After how much time of the start was the first pipe stopped.

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A tank can be filled by two pipes in 20 minutes and 30 minutes respectively when the tank was empty, two pipes were opened. After sometime, the first pipe was stopped and the tank was filled in 18 minutes. After how much time of the start was the first pipe stopped.