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    Question

    The ratio of number of days taken by Arjun and Bheem to complete a work individually is 7:8 and the ratio of number of days taken by Bheem and Chinky to complete a work individually is 6:7 and the ratio of number of days taken by Chinky, Danny, Elli and Finn to complete a work individually is 28 : 30 : 35 : 40. Arjun takes 21 days to complete a work individually.

    Arjun works for ‘x’ days and he complete 20% of

    work. while remaining work is completed by Bheem & Chinky together in (x + 190/13) days, then What will be the number of days for Bheem & Chinky work.
    A 340/13 days Correct Answer Incorrect Answer
    B 120/13 days Correct Answer Incorrect Answer
    C 320/13 days Correct Answer Incorrect Answer
    D 325/13 days Correct Answer Incorrect Answer
    E none of these Correct Answer Incorrect Answer

    Solution

    ATQ, we can say that 40 × 'x' × 4 = (35 + 30) × (x + (190/13))  32x = 13(x + (190/13))  32x = 13x + 190  19x = 190 x = 10  Bheem annd Chinky work for = 10 + (190/13)  = 320/13 days

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