Question
How many kilograms of rice cost Rs. 60 per kg? must be mixed with 26 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.?
Solution
Solution SP = 56 per kg profit% = 12 
Then CP = 56×100/112 CP = 50 per kg 
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