Multiple choice

A person mix 18 ltrs of water in pure milk and sells the mixture at cost price of milk and gets a profit of 12.5%. Find the initial quantity of milk.

  1. 120 lt.

  2. 124 lt.

  3. 160 lt.

  4. 144 lt.

  5. None of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Let initial milk be x liters. Cost price = x * rate per liter. Mixture volume = x + 18 liters. Selling at CP of milk gives profit = (18/x) * 100 = 12.5%. So 18/x = 0.125, thus x = 144. The profit equals the percentage of water added to milk.

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