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    Question

    35 men can complete a piece of work in 40 days. β€˜x’

    men started the work and after 30 days 60 more men joined them so that whole work was finished in the desired time. Find the value of β€˜x’
    A 22 Correct Answer Incorrect Answer
    B 23 Correct Answer Incorrect Answer
    C 20 Correct Answer Incorrect Answer
    D 25 Correct Answer Incorrect Answer

    Solution

    Total work = 35 Γ— 40 = 1400 units According to question; 30 Γ— x + 10 Γ— (x + 60) = 1400 Or, 30x + 10x + 600 = 1400 Or, 40x = 800 Or, x = 20

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