Question : In what ratio must water be mixed with milk costing 32 per litre to get a mixture costing 28 per litre?
Option 1: 8 : 1
Option 2: 1 : 7
Option 3: 1 : 8
Option 4: 7 : 1
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Correct Answer: 1 : 7
Solution :
By using alligation,
Water : Milk = 4 : 28 = 1 : 7
Hence, the correct answer is 1 : 7.
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