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Mixtures & Alligation · Question 35 of 60

Question 35

EasyOriginal question

A can holds 50 litres of pure milk. Kiran takes out 10 litres and pours in 10 litres of water. What is the ratio of milk to water in the can now?

Options for question 35

Show the answer and explanation
CorrectNot quiteAnswer C

Correct answer: C

Explanation

  1. Milk left = 50−10=4050 - 10 = 40 litres.

  2. Water = 10 litres (the amount poured in).

  3. Milk : water = 40:10=4:140 : 10 = 4 : 1.

Worth noting

5:15 : 1 compares the original 50 litres with the 10 litres of water, forgetting that 10 litres of milk went out.

Concept
One removal and replacement of pure liquid
Typical time
35 s
Your time
—
The rule this testsMixtures and replacement
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