Question
Two varieties of rice costing Rs. 50/kg and Rs. 70/kg
are mixed so that the cost price of the mixture is Rs. 60/kg. In what ratio are the cheaper and dearer varieties mixed (cheaper : dearer)?Solution
ATQ, Let cheaper = Rs. 50/kg, dearer = Rs. 70/kg Mean price = Rs. 60/kg Using alligation: (70 − 60) : (60 − 50) = 10 : 10 = 1 : 1 So the cheaper and dearer varieties are mixed in the ratio 1 : 1.
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