1 litre of water is added to 5 litres of alcohol-water solution containing 40% a

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Question

1 litre of water is added to 5 litres of alcohol-water solution containing 40% alcohol strength. The strength of alcohol in the new solution will be

Options:

A . 33$1/3$%

B . 30%

C . 33%

D . 33$2/3$%

Answer: Option A
Answer: (a)Alcohol in original solution = $40/100 × 5$ = 2 litresWater in original solution = 3 litresOn adding 1 litre water, water becomes 4 litres. Now, 6 litres of solution contains 2 litres of alcohol. 100 litres of solution contains = $2/6 × 100$= $100/3 = 33{1}/3%$ alcohol.

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