a mixture contains alcohol and water in the ratio 4 : 3 . if 8 litres of water is added to the mixture , the ratio becomes 4 : 5 . find the quantity of alcohol in the given mixture
"let the quantity of alcohol and water be 4 x litres and 3 x litres respectively 4 x / ( 3 x + 8 ) = 4 / 5 20 x = 4 ( 3 x + 8 ) 8 x = 32 x = 4 quantity of alcohol = ( 4 x 4 ) litres = 16 litres . answer is e ."
multiply(8, const_1)