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    Question

    How many Kg of rice costing rupees 19 per kg must be

    mixed with 26 Kg of rice costing Rs.25 per Kg, so that there may be a gain of 17.5% by selling the mixture of Rs.23.50 per Kg?
    A 125 kg Correct Answer Incorrect Answer
    B 130 kg Correct Answer Incorrect Answer
    C 138 kg Correct Answer Incorrect Answer
    D None of these Correct Answer Incorrect Answer

    Solution

    ATQ, Let x kg rice is mixed Then total cost of rice costing rupees 19 per kg = 19x Total cost of rice costing rupees 25 per kg = 25 × 26 = 650 rupees According to the question- 117.5% of (19x+ 26 × 25) = (26+x) × 23.5 117.5/100 × (19x+650) = (26+x) × 235/10 19x + 650 = 520 + 20x X = 650-520 X = 130 Kg

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