issb mathematics MCQ #26

Pipe A fills tank in 6 h, B in 12 h. Together, time to fill?

issb mathematics MCQ #26

  1. Question 1

    Q1. Pipe A fills tank in 6 h, B in 12 h. Together, time to fill?

    • A) 3 h
    • B) 4 h
    • C) 5 h
    • D) 8 h

    Answer: 4 h

    Explanation: Rates: 1/6 + 1/12 = 1/4 per hour → 4 hours total.