general math MCQ #882

A, B, and C can complete a work in 20, 12, and 8 days respectively. In how many days can A and B together complete that work?

general math MCQ #882

  1. Question 1

    Q1. A, B, and C can complete a work in 20, 12, and 8 days respectively. In how many days can A and B together complete that work?

    • A) 60/8 days (or 7.5 days)
    • B) 41/4 days
    • C) 71/3 days
    • D) 50/4 days

    Answer: 60/8 days (or 7.5 days)

    Explanation: A and B together complete 1/20 + 1/12 = 8/60 = 2/15 of the work per day, taking 15/2 = 7.5 days.