A jar full of whisky contains 40% alcohol A part of this whisky is replaced by another containing 19% alcohol and now the percentage of alcohol was found to be 26% If the quantity of whisky replaced is 'k'.Find 3k
By the rule of alligation we have
So ratio of 1st and 2nd quantities = 7 : 14 = 1 : 2
∴ Required quantity replaced = 23