New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    16 men can complete a work in 10 days. 10 men started

    the same work and left after working for ‘y’ days. The remaining work is completed by 6 men in 15 days. Find the value of ‘y’.
    A 10 Correct Answer Incorrect Answer
    B 7 Correct Answer Incorrect Answer
    C 15 Correct Answer Incorrect Answer
    D 22 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ, Total work = 16 × 10 = 160 man-days. When 10 men work for ‘y’ days, the work done = 10y man-days. Remaining work = 160 - 10y man-days. 6 men complete the remaining work in 15 days, so: 6 × 15 = 90 man-days. Therefore, 10y + 90 = 160 10y = 70 y = 70/10 y = 7

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