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    Question

    A builder recruited 60 workers to do a task in 90 days.

    It was discovered that only 1/3 of the task was achieved after 60 days. Determine how many additional workers need to be hired in order to complete the work on schedule.
    A 180 Correct Answer Incorrect Answer
    B 120 Correct Answer Incorrect Answer
    C 165 Correct Answer Incorrect Answer
    D 225 Correct Answer Incorrect Answer

    Solution

    ATQ, Let 'a' more workers joined after 60 days and let total task be 3u units Using (men X days) ÷ task = constant {(60 X 60) /u} = {(60 + a) X 30} ÷ 2u Or, a = 180 Therefore, 180 extra workers are needed so that task gets completed on time.

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