Question
Two mixtures (milk and water) 'A' and 'B' contains
quantities of milk and water in ratio of 2:3 and 4:1, respectively. If 30 ml from 'A' and 25 ml from 'B' are mixed to form a new mixture, then find the percentage of milk in the new mixture.Solution
Quantity of milk in 30 ml of mixture 'A' = 30 × (2/5) = 12 ml
Quantity of milk in 25 ml of mixture 'B' = 25 × (4/5) = 20 ml
Total quantity of final mixture = (30 + 25) = 55 ml
Required percentage = ((12 + 20) ÷ 55) × 100 = 32/55 × 100 = 58.18% ≈ 58%
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