A jar full of whisky contains 40% alcohol. A part of this whisky is replaced by another containing 19% alcohol and now

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%. What quantity of whisky is replaced?

A. 1/3
B. 2/3
C. 2/5
D. 3/5
E. 4/5

Answer: B

Source: EMPOWERgmat

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