issb mathematics MCQ #510

Tap A fills 3 h, B fills 6 h. Both open, fill time?

issb mathematics MCQ #510

  1. Question 1

    Q1. Tap A fills 3 h, B fills 6 h. Both open, fill time?

    • A) 1 h
    • B) 1.5 h
    • C) 2 h
    • D) 2.5 h

    Answer: 2 h

    Explanation: Combined rate 1/3 plus 1/6 equals 1/2 so 2 hours. Apply the same method to similar ISSB quantitative items.