New RBI Grade B 2025 Notification will come Soon! Enroll Here

    Question

    A and B can do a piece of work in 18 days, B and C in 24

    days, A and C in 36 days. Working together they can do the work in
    A 12 days Correct Answer Incorrect Answer
    B 13 days Correct Answer Incorrect Answer
    C 16 days Correct Answer Incorrect Answer
    D 26 days Correct Answer Incorrect Answer

    Solution

    ATQ, A and B together can do the work in 18 days, so their combined rate is (1/18) B and C together can do the work in 24 days, so their combined rate is (1/24) A and C together can do the work in 36 days, so their combined rate is (1/36) Adding these rates: This simplifies to: So, A+B+C = (1/16) Thus, working together, A, B, and C can complete the work in 16 days.

    Practice Next