Multiple choice

A milkman purchases milk at the rate of Rs. 12 per litre and then mixes 25 per cent water to it. Find his profit per cent, if he sells the mixture at Rs. 15 per litre.

  1. $52.12\%$
  2. $56.25\%$
  3. $60.05\%$
  4. $63.75\%$
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Cost of 1 liter milk = 12. After adding 25% water, volume = 1.25 liters, cost = 12. Cost per liter = 12 / 1.25 = 9.6. Selling price = 15. Profit = 15 - 9.6 = 5.4. Profit % = (5.4 / 9.6) * 100 = 56.25%.

AI explanation

Assume the milkman buys 1 liter of milk for Rs. 12, and adding 25 percent water increases the total volume to 1.25 liters without changing the cost. Selling this 1.25 liters of mixture at Rs. 15 per liter results in total revenue of Rs. 18.75. The profit is Rs. 18.75 minus Rs. 12, which equals Rs. 6.75, and dividing this profit by the original cost of Rs. 12 and multiplying by 100 gives 56.25 percent.

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