Question
In a mixture 'P', the ratio of milk to water is 7:5. In
another mixture 'Q', the ratio is 1:2. If 72 litres of P and 54 litres of Q are mixed, find the final milk to water ratio.Solution
ATQ,
Milk in P = (7/12) × 72 = 42 litres
Water in P = (5/12) × 72 = 30 litres
Milk in Q = (1/3) × 54 = 18 litres
Water in Q = (2/3) × 54 = 36 litres
Required ratio = (42 + 18) : (30 + 36) = 60 : 66 = 10 : 11
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