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

    Question

    A man, a woman and a boy can do a work in 4, 8, 32 days

    respectively. How many boysare required with 1 man and 1 woman to complete the same work in 1/4 day?
    A 126 Correct Answer Incorrect Answer
    B 132 Correct Answer Incorrect Answer
    C 128 Correct Answer Incorrect Answer
    D 116 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    1M 1W 1B 4 8 32 LCM = 32 units So ratio of eff: = 8 : 4 : 1 Let number of boys be x who are working with 1 man & 1 women So (8+4+1*x)*(1/4)= 32 12+x = 128 S o x = 116

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