2002 · Q56
Three containers have their volumes in the ratio 3 : 4 : 5. They are full of mixtures of milk and water. The mixtures contain milk and water in the ratio of 4 : 1, 3 : 1 and 5 : 2 respectively. The contents of all these three containers are poured into a fourth container. The ratio of milk and water in the fourth container is
General Mental Ability, Quantitative Aptitude and StatisticsNumber system and arithmetic
- A5:2
- B157:53
- C151:48
- D4:1
Explanation
With container volumes 3x, 4x, 5x: milk = (4/5)(3x) + (3/4)(4x) + (5/7)(5x) = 12x/5 + 3x + 25x/7 = 314x/35. Total volume = 12x, so water = 12x − 314x/35 = 106x/35. The milk-to-water ratio is 314:106 = 157:53 — option (B).