Management Aptitude Test Sep 2011 Paper

(3) In first container,
Milk = 90% of 20= 18 L
∴ Water = 20 - 18 = 2 L
In second container,
Milk = 80% of 5 = 4 L
Water = 5 - 4 = 1 L
In third container,
Milk = 70% of 9 = 6.3 L
Water = 9 - 6.3= 2.7 L
After mixing,
Total milk = 18 + 4 + 6.3 = 28.3 L
Total water = 2 + 1 + 2.7 = 5.7 L
∴ Required ratio = 28.3 : 5.7 ≈ 5 : 1