Question
A 420 litre mixture contains only milk and water in the
ratio 5:2 respectively. If 'x' litre of water is added to the mixture, then ratio of milk and water become 5:4 respectively. Find the value of 'x'.Solution
Initial quantity of Milk = 420 × (5/7) = 300 litres Initial quantity of Water = 420 × (2/7) = 120 litres ATP, (300) : (120 + x) = 5 : 4 Or, 1200 = 600 + 5x 5x = 600 'x' = 120
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