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    Question

    A contractor hired 40 workers to complete a work in 100

    days. After 70 days, it was found that only 2/5th of the work was completed. Find the number of extra workers needed to be hired, so that the work gets completed on time.
    A 100 Correct Answer Incorrect Answer
    B 250 Correct Answer Incorrect Answer
    C 200 Correct Answer Incorrect Answer
    D 220 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ, Let 'n' more workers joined after 70 days and let total work be 5W units. Using (men X days) ÷ work = constant Simplifying, Therefore, 100 extra workers are needed so that work gets completed on time.

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