Question
360 litres of mixture 'P' has milk and water in the ratio
4:1, and 240 litres of mixture 'Q' has them in the ratio 5:3. What is the ratio of milk to water when both are mixed?Solution
ATQ,
Quantity of milk in mixture 'P' = 360 × (4/5) = 288 litres
Quantity of water in mixture 'P' = 360 - 288 = 72 litres
Quantity of milk in mixture 'Q' = 240 × (5/8) = 150 litres
Quantity of water in mixture 'Q' = 240 - 150 = 90 litres
Therefore, required ratio = (288 + 150) : (72 + 90) = 438 : 162 = 73 : 27
l). 3p + 2q = 27
ll). 4p - 3q = 2
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