Multiple choice

The two pots have a mixture of milk and water. Milk in the first vessel is 90% and milk in the second vessel is 40%. In what proportion should the misture of both the utensils be mixed so that the mixture contains 70% milk?

  1. 2: 3

  2. 3: 2

  3. 4: 5

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

Using alligation rule: We need to mix 90% milk and 40% milk to get 70% milk. Differences from mean: 90 - 70 = 20 and 70 - 40 = 30. The ratio of quantities is the inverse of these differences, i.e., 3:2. This means 3 parts of 40% milk should be mixed with 2 parts of 90% milk to get 70% milk mixture.

Keep practicing — related questions