A large pot X contains 3 litres mixture consisting of milk and water in the ratio 3:2. Another pot Y contains 100 litres mixture consisting of milk and water in the ratio 9:1. How many litres of mixture from pot Y are to be poured into pot X to get a mixture with the ratio… | UPSC CAPF 2026 Q No 61

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A large pot X contains 3 litres mixture consisting of milk and water in the ratio 3:2. Another pot Y contains 100 litres mixture consisting of milk and water in the ratio 9:1. How many litres of mixture from pot Y are to be poured into pot X to get a mixture with the ratio of milk to water as 17:3 in pot X?

Options:

  1. 9
  2. 12
  3. 15
  4. 18
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Accepted Answer

Accepted Answer: (C) 15

Topic Covered: Quantitative Aptitude and Reasoning

Key Concept: Mathematical relationships, counting and logical analysis

The correct option follows from the underlying quantitative, logical or geographical relationship. “15” is obtained by applying the defining rule, formula, map fact or classification relevant to the question.

The key is to apply the central fact, formula, definition or relationship tested in the question and then eliminate alternatives that do not satisfy it.

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