Question

A jar full of whiskey contains 40% alcohol. A part of this whiskey is replaced by another containing 19% alcohol and now the percent of alcohol was found to be 26%. The quantity of whiskey replaced is

• A. $\frac{1}{3}$
• B. $\frac{2}{3}$
• C. $\frac{2}{5}$
• D. $\frac{3}{5}$

Answer 1

The correct option is B $\frac{2}{3}$

R.E.F image

Using alligation,

Changed quantity $=\frac{2}{3}$