Question

a mixture contain alcohol and watet in the ratio 4:3. if the five litre of water is added to the mixture, the ratio becomes 4:5. find the quantity of alcohol in the mixture​

Answer 1

Step-by-step explanation:

let the quantity of alcohol be 4x and water be 3x

5 liters of water are added

then,

$\frac{4x}{3x+5}= \frac{4}{5}\\20x=12x+20\\20x-12x=20\\8x=20\\x=\frac{20}{8} \\x=2.5$

Therefore, alcohol = 4*2.5 = 10 liters