Question
A container holds 1280 litres of a milk and water
mixture in the ratio of 9:7. Then, 320 litres of this mixture is removed and replaced with an equal amount of water. What will be the new ratio of milk to water in the resulting mixture?Solution
Amount of milk in the resultant mixture = 9/16 × (1280 – 320) = 540 litres Amount of water in the resultant mixture = 7/16 × (1280 – 320) + 320 = 740 litres Required ratio = 540:740 = 27:37
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