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WBCS Main Examination 2023 — Paper VI: Arithmetic and Test of Reasoning · Question 128 of 200

Q128
ArithmeticRatio, Proportion & Mixtures
A merchant mixes two varieties of wine containing 25% and 13% alcohol. The resultant mixture contains 17% alcohol. Find the quantity of second mixture, if 8 litre of first mixture is taken.
  1. a.4 litres
  2. b.16 litres
  3. c.24 litres
  4. d.32 litres

Answer: (B) 16 litres

By alligation, first : second = (17 − 13) : (25 − 17) = 4 : 8 = 1 : 2. So with 8 litres of the first, 16 litres of the second are needed. 4 litres reverses the ratio.

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A merchant mixes two varieties of wine containing 25% and 13% alcoh… — WBCS Main Examination 2023 Q128 | Prostuti360°