Multiple choice

A vessel contains 56 litres of a mixture of milk and water in the ratio 5 : 2. How much water should be mixed with it so that the ratio of milk and water may be 4 : 5?

  1. 22

  2. 34

  3. 32

  4. 20
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Initial mixture: 56 liters, ratio 5:2. Milk = 40, Water = 16. Let x be water added. New ratio: 40 / (16+x) = 4/5. 200 = 64 + 4x. 136 = 4x. x = 34.

AI explanation

Using the given ratio, the 56 litres of mixture contains 40 litres of milk and 16 litres of water. Let x litres of water be added, so the new equation is 40 divided by (16 plus x) equals 4 divided by 5. Solving 200 equals 64 plus 4x yields 4x equals 136, so x is 34.

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