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1. The ratio of the quantities of sugar, in which sugar costing Rs. 20 per kg and Rs. 15 per kg, should be mixed so that here will be neither loss nor gain on selling the mixed sugar at the rate of Rs. 16 per kg, is -

Solution:
According to the question,
When there is no profit no loss,
Here, Cost price = Selling price
∴ Cost price of mixed sugar = Rs. 16/kg
Apply alligation
Alligation mcq solution image
⇒Ratio →1:4

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