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    Question

    Cost price of wheat (per kg) of type 'A' and 'B' is Rs.

    78 and Rs. 102 respectively. Both types are mixed and sold at Rs. 108 per kg at a profit of 20%. Find the ratio in which wheat of type 'B' is mixed with wheat of type 'A'.
    A 4:3 Correct Answer Incorrect Answer
    B 3:2 Correct Answer Incorrect Answer
    C 1:1 Correct Answer Incorrect Answer
    D 5:4 Correct Answer Incorrect Answer

    Solution

    Cost price of mixture = (108 / 1.2) = Rs. 90
    Let 'm' kg and 'n' kg of wheat of type 'A' and 'B' respectively be mixed.
    So, (78m + 102n) ÷ (m + n) = 90
    Or, 78m + 102n = 90m + 90n
    Or, 12n = 12m
    Or, m:n = 1:1

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