1 litre of water is added to 5 litres of alcohol-water solution containing 40% alcohol strength. The strength… · ABC26GN2466
Subject: General Aptitude · Chapter: Percentage · Exam: S.S.C. 2007
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
(a)30\%
(b)$33 \frac{1}{3} \%$
(c)$33 \frac{2}{3} \%$
(d)33\%
Answer
Explanation
Quantity of alcohol $=\left(\frac{40}{100} \times 5\right)$ litres $=2$ litres. $$\text { ∴ New strength }=\left(\frac{2}{6} \times 100\right) \%=33 \frac{1}{3} \% \text {. }$$
Explanation as extracted from the printed page; notation may be imperfect.
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