issb mathematics MCQ #501

A and B together 4 days, A alone 6 days. B alone?

issb mathematics MCQ #501

  1. Question 1

    Q1. A and B together 4 days, A alone 6 days. B alone?

    • A) 10 days
    • B) 12 days
    • C) 14 days
    • D) 8 days

    Answer: 12 days

    Explanation: B rate is 1/4 minus 1/6 equals 1/12 so 12 days. Apply the same method to similar ISSB quantitative items.