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

    Question

    15 men can do a work in 30 days. After 18 days of work,

    5 more men were engaged to finish the work. The number of days required to complete the remaining work is:
    A 6 Correct Answer Incorrect Answer
    B 8 Correct Answer Incorrect Answer
    C 10 Correct Answer Incorrect Answer
    D 9 Correct Answer Incorrect Answer

    Solution

    ATQ- 15×30 = (15×18) +(20×a) 450 =270+20a 20a =180 A = 9 days.

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