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?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 Ă— 26 = 650 rupees According to the question- 117.5% of (19x+ 26 Ă— 25) = (26+x) Ă— 23.5 117.5/100 Ă— (19x+650) = (26+x) Ă— 235/10 19x + 650 = 520 + 20x X = 650-520 X = 130 Kg
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