issb mathematics MCQ #274

A finishes in 5 days, B in 20 days. Together:

issb mathematics MCQ #274

  1. Question 1

    Q1. A finishes in 5 days, B in 20 days. Together:

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

    Answer: 4 days

    Explanation: Together rate is 1/5 plus 1/20, which is 1/4. Time is 4 days.