Multiple choice

In what proportion must water be mixed with milk to gain 60% by selling it at 20% above cost price? दूध में पानी किस अनुपात में मिलाया जाय ताकि मिश्रण को क्रय मूल्य पर 60% बढ़कर बेचने पर 50% का लाभ हो?

  1. 1 : 4

  2. 4 : 1

  3. 1 : 3

  4. 3 : 1
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Let milk cost 1/liter. Water costs 0. Need 60% profit selling at 1.2. So cost of mix = 1.2/1.6 = 0.75. Using alligation: milk at 1, water at 0, mean 0.75 gives ratio 0.75:0.25 = 3:1 (water:milk). So water:milk = 1:3. Option C is correct.

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