1 litre of water is added to 5 litre of alcohol - water solu

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RRB ASM Exam (Ajmer) 2007 click here to view all questions

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

A30%

B33%

C

D

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Answer is : $33\frac{1}{3}\mathrm{\%}$ Alcohol in the earlier mixture = 40% of 5 liters = 2 liters Mixture after addition of 1 liter of water = 5 + 1 = 6 liters Therefore strength of alcohol in the new mixture in percentage = $\frac{2}{6}\ast 100$ $=\frac{100}{3}$ $=33\frac{1}{3}\mathrm{\%}$ Nithin K ? answered Nov 20 '2016 at 19:2 All Comments

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