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    Question

    A construction company has five teams (A, B, C, D, E) working on different projects. The table below shows the number of workers in each team and the number of days they took to complete their respective projects over three years.

    In 2023, if all teams worked together to complete a

    project that requires 500 total worker-days, how many days would they take to complete the project?
    A 1 days Correct Answer Incorrect Answer
    B 2 days Correct Answer Incorrect Answer
    C 3 days Correct Answer Incorrect Answer
    D 1.4 days Correct Answer Incorrect Answer

    Solution

    In 2023, the number of workers in each team: Team A = 70 workers Team B = 80 workers Team C = 65 workers Team D = 75 workers Team E = 60 workers Total workers in 2023 = 70 + 80 + 65 + 75 + 60 = 350 workers. Total worker-days required for the project = 500 worker-days. Time taken by the combined workforce to complete the project: Days = Total worker-days / Total workers = 500 / 350 = 1.43 days. Ans. d

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