A mixture contains alcohol and water in the ratio 4 : 3. If 5 litres of water is added to the mixture, the ratio becomes 4: 5. Find the quantity of alcohol in the given mixture
Answers.
A) 20  B) 30  C) 15  D) 10  E) 25
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.   ANSWER 10
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A mixture contains alcohol and water in the ratio 4 : 3. If 5 litres of water is added to the mixture, the ratio becomes 4: 5. Find the quantity of alcohol in the given mixture