Multiple choice

In what ratio must water be mixed with milk costing Rs. 12 per liter to obtain a mixture worth of Rs. 8 per liter? 12 रुपये प्रति लीटर के दूध व पानी को किस अनुपात में मिलाया जाये कि मिश्रण की कीमत 8 रु प्रति लीटर हो जाए ?

  1. 2:1

  2. 3:1

  3. 3:2

  4. 2:3

  5. None of these इनमें से कोई नहीं
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A Correct answer
Explanation

Using alligation: water costs Rs. 0/liter, milk costs Rs. 12/liter, mixture costs Rs. 8/liter. By alligation rule, ratio of water to milk = (12-8):(8-0) = 4:8 = 1:2, so water:milk = 1:2 or milk:water = 2:1.

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