A mixture contains alcohol and water in the ratio 4 : 3. If 9 litres 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) 15 litres B) 10 litres C) 30 litres D) 22 litres E) 18 litres
Let the quantity of alcohol and water be 4x litres and 3x litres respectively   4x/(3x+9)=4/5   20x=4(3x+9)   8x=36   x=4.5   Quantity of alcohol = (4 x 4.5) litres = 18 litres.   Answer is 18 litres
<result>E</result>
A mixture contains alcohol and water in the ratio 4 : 3. If 9 litres of water is added to the mixture, the ratio becomes 4: 5. Find the quantity of alcohol in the given mixture