issb mathematics MCQ #234

A does work in 6 days, B in 12 days. Together:

issb mathematics MCQ #234

  1. Question 1

    Q1. A does work in 6 days, B in 12 days. Together:

    • A) 3 days
    • B) 4 days
    • C) 5 days
    • D) 6 days

    Answer: 4 days

    Explanation: Together rate is 1/6 plus 1/12, which is 1/4. Time is 4 days.