Question
120 litres of mixture X contains acetone and glycerine
in the ratio 5:7, respectively. 60 litres of the mixture is withdrawn and labelled as mixture Y and 6 litres of acetone is added to it. Find the ratio of glycerine to acetone in mixture Y. STSolution
Quantity of acetone in mixture Y = 60 times; 5/12 = 25 litres Quantity of glycerine in mixture Y = 60 ndash; 25 = 35 litres After addition of 6 litres of acetone, New ratio of glycerine to acetone = 35:(25 + 6) = 35:31
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