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    Question

    How many kilograms of rice cost Rs. 60 per kg? must be

    mixed with 24 kg. of rice costing Rs. 42 per kg. so that there may be a gain of 12% by selling the mixture at Rs. 56 per kg.?
    A 18kg Correct Answer Incorrect Answer
    B 19kg Correct Answer Incorrect Answer
    C 18.2kg Correct Answer Incorrect Answer
    D 19.2kg Correct Answer Incorrect Answer

    Solution

    =56├Ч100/112=50 10=24 1= 24/10 8=24├Ч8/10=19.2kg

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