A mixture contains alcohol and water in the ratio 4 : 3. If 5 liters of water is added to the mixture, the ratio becomes 4: 5. Find the quantity of alcohol in the given mixture.
Select the correct option:
A) 10 B) 12 C) 15 D) 18 E) 20
Explanation:   Let the quantity of alcohol and water be 4x litres and 3x litres respectively   4x/(3x+5) = 4/5   20x = 4(3x+5)   8x = 20   x = 2.5   Quantity of alcohol = (4 x 2.5) litres = 10 litres.   10nswer: 10
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A mixture contains alcohol and water in the ratio 4 : 3. If 5 liters of water is added to the mixture, the ratio becomes 4: 5. Find the quantity of alcohol in the given mixture.