issb mathematics MCQ #483

A in 10 days, B in 15 days, C in 30 days together?

issb mathematics MCQ #483

  1. Question 1

    Q1. A in 10 days, B in 15 days, C in 30 days together?

    • A) 5 days
    • B) 6 days
    • C) 7 days
    • D) 8 days

    Answer: 5 days

    Explanation: Rates sum to 1/10 plus 1/15 plus 1/30 equals 1/5 so 5 days.