The ratio of milk and water in mixtures of four containers are 5 : 3, 2 : 1, 3 : 2 and 7 : 4 respectively. In which container is the quantity of milk, relative to water is minimum?

Compare milk:water ratios as fractions: Container 1 (5:3 = 1.67), Container 2 (2:1 = 2.00), Container 3 (3:2 = 1.50), Container 4 (7:4 = 1.75). The minimum milk-to-water ratio is 1.5 in Container 3. Option B (Second) has ratio 2:1 = 2, which is higher. The question asks for minimum milk relative to water, meaning smallest ratio.