Multiple choice

Jar A has ‘x’ ml mixture of milk and water, of which 40% is water. Jar B also has mixture of milk and water, of which 20% is water. The quantity of mixture in Jar B is twice that of Jar A. If the content of Jar B is emptied into Jar A completely and the resultant quantity of milk in Jar A is 198 ml, what is the value of ‘x’?

  1. 45

  2. 90

  3. 85

  4. 95

  5. 65
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Jar A has x ml with 40% water, so 60% milk = 0.6x ml milk. Jar B has 2x ml with 20% water, so 80% milk = 1.6x ml milk. When combined, total milk = 0.6x + 1.6x = 2.2x = 198 ml. Therefore, x = 198 ÷ 2.2 = 90 ml.

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