Multiple choice

Pure milk costs Rs. 12 per litre. A milkman add some water to 16 litres of pure milk and sells the mixture at Rs. 10 per litre by making 25% profit. How many litres of water does he added?

  1. 5 litres

  2. 6 litres

  3. 8 litres

  4. 12 litres

  5. 18 litres
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Cost price of 16 litres milk = 16 × 12 = Rs. 192. With 25% profit, selling price = 192 × 1.25 = Rs. 240. At Rs. 10/litre, total mixture = 240/10 = 24 litres. Water added = 24 - 16 = 8 litres. Option A (5 litres) and B (6 litres) give incorrect total volumes. Option D (12 litres) would mean 28 litres sold for Rs. 280, which is 45.8% profit, not 25%. Option E (18 litres) is too high.

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