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    Question

    Rice costing Rs. 60 per kg is mixed with rice costing

    Rs. 90 per kg to get a mixture worth Rs. 78 per kg. In what ratio are the two types of rice mixed?
    A 5:7 Correct Answer Incorrect Answer
    B 2:3 Correct Answer Incorrect Answer
    C 4:7 Correct Answer Incorrect Answer
    D 3:8 Correct Answer Incorrect Answer

    Solution

    Use alligation method: High price = 90 Low price = 60 Mean price = 78 Difference: 90 тИТ 78 = 12 78 тИТ 60 = 18 Ratio of cheaper : costlier = 12 : 18 = 2 : 3 Answer: 2 : 3

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