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    Question

    TYPE 39

    Komal and Seema individually can complete a task in

    ‘4a’ hours and ‘6a’ hours respectively. If they together can complete half of the work in 6 hours, then find the value of ‘a’.
    A 2 Correct Answer Incorrect Answer
    B 3 Correct Answer Incorrect Answer
    C 4 Correct Answer Incorrect Answer
    D 5 Correct Answer Incorrect Answer
    E 6 Correct Answer Incorrect Answer

    Solution

    According to the question, => 6 x [(1/4a) + (1/6a)] = 1/2 => 6 x (5/12a) = 1/2 => a = 5

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