Question
A mixture measuring 720 ml consists of milk and water in
an 8:7 ratio. How much water should be added to ensure that the water content is 12.5% greater than the milk content in the mixture?Solution
Quantity of milk in 720 ml of mixture = 8/15 × 720 = 384 ml Quantity of water in 720 ml of mixture = 720 – 384 = 336 ml Quantity of water that must be added = 1.125 × 384 – 336 = 432 – 336 = 96 ml
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