Question
Milk and water are in the ratio 1:2. When 1 litre of milk
and 1 litre of water are added, the ratio becomes 3:5. Find the initial quantity of the mixture.Solution
Let the initial quantity of milk and water be 'y' and '2y' litres respectively.
So, (y + 1):(2y + 1) = 3:5
Or, 5 × (y + 1) = 3 × (2y + 1)
Or, 5y + 5 = 6y + 3
Or, y = 2
Therefore, required quantity = 3y = 3 × 2 = 6 litres
47.87% of 749.76 + 35.11% of 399.76 = √? + 23.15 × 20.87
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What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
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