Two pipes A and B can fill a tank in 6 hours and 8 hours respectively. If both…

2025

Two pipes A and B can fill a tank in 6 hours and 8 hours respectively. If both are opened together, the tank
will be full in approximately:

  1. A.

    3 hours 25 minutes

  2. B.

    3 hours 26 minutes

  3. C.

    4 hours

  4. D.

    4 hours 12 minutes

Attempted by 36 students.

Show answer & explanation

Correct answer: B

Together the pipes fill 1/6 + 1/8 = 7/24 of the tank per hour. Time = 24/7 hours, which is about 3 hours 26 minutes.

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