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    Question

    A contractor was tasked with constructing a bridge

    within 45 days. To complete the project, he initially hired 75 workers. However, after 40 days, he discovered that only 75% of the work had been completed. How many additional workers must he hire to ensure the remaining work is finished on schedule?
    A 100 Correct Answer Incorrect Answer
    B 125 Correct Answer Incorrect Answer
    C 150 Correct Answer Incorrect Answer
    D 200 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Let the contractor employed тАШxтАЩ more workers after 40 days. So according to question: (75 ├Ч 40)/0.75 = {(x + 75) ├Ч 5}/0.25 20x + 1500 = 4000 20x = 2500, x = 125 So, 125 more workers are required to complete the work on time.

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