In a mixture 60 litres, the ratio of milk and water 2 : 1. If this ratio is to…

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In a mixture 60 litres, the ratio of milk and water 2 : 1. If this ratio is to be 1 : 2, then the quantity of water to be further added is:

  1. A.

    20 litres

  2. B.

    30 litres

  3. C.

    40 litres

  4. D.

    60 litres

Attempted by 41 students.

Show answer & explanation

Correct answer: D

Solution

  • Total mixture = 60 litres

  • Ratio (Milk : Water) = 2 : 1

Step 1: Find quantities

Total parts = 2+1=3

  • Milk = 2/3 * 60 = 40L

  • Water = 1/3​ * 60 = 20L

Step 2: Add water = x

New ratio: 40 / (20 + x) = 1/2

Solve:

80 = 20 + x
x = 80-20 = 60

Final Answer: 60 litres

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