A jar full of whiskey contains 40% alcohol. A part of this whisky is replaced by another containing 19% alcohols and now the percentage of alcohol was found to be 26%. The quantity of whisky replaced of whisky replaced is	Choose the correct choice from the following answers
A) 1 / 3  B) 2 / 3  C) 2 / 5  D) 3 / 5  E) None
Solution   ratio of 1st and 2nd quantities = 7 : 14 = 1 : 2.   Required quantity replaced = 2/3   Answer 2 / 3
<result>B</result>
A jar full of whiskey contains 40% alcohol. A part of this whisky is replaced by another containing 19% alcohols and now the percentage of alcohol was found to be 26%. The quantity of whisky replaced of whisky replaced is