1 L of water is added to 5 L of alcohol and water solution containing 40% alcohol strength. The strength of alcohol in the new solution will be?

30%
331/3%
332/3%
33%

Correct Answer: 331/3%

Explanation:

Quantity of alcohol in 5 L of solution = (40/100) x 5 = 2 L
Quantity of alcohol in 6 L of solution = 2 L
∴ Strength of alcohol in new solution = (2/6) x 100%
= 33¹/₃%

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