Multiple choice

In what ratio we should mix milk and water so that if we sell the solution at cost price we get a profit of 25%.

  1. 6 : 5

  2. 5 : 3

  3. 3 : 5

  4. 4 : 1

  5. 1 : 4
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Profit = 25% = 1/4. To get 25% profit by selling at cost price, the ratio of water to milk must be 1/4. Thus, milk : water = 4 : 1.

AI explanation

Let the cost price of pure milk be Re. 1 per liter and the quantity of milk be 4 liters, meaning the total cost is Rs. 4. If 1 liter of water is added freely, the total mixture becomes 5 liters, and selling this mixture at the cost price of Re. 1 per liter yields Rs. 5. Using the profit percentage formula, (Profit / Cost) x 100 gives a profit of (1 / 4) x 100 = 25 percent. This requires a ratio of 4 liters of milk to 1 liter of water, which is 4 : 1.

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