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8 litres of water is added to 32 litres of a solution containing 20% of alcohol in water. What is the approximate concentration of alcohol in the solution now ?
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- 24%
- 16%
- 8%
- 12%
Correct Option: B
In 32 litres of solution,
| Alcohol = | = 6.4 litres | 100 |
Water = 32 – 6.4 = 25.6 litres
On adding 8 litres of water,
| Required percent = | × 100 = 16% | 40 |
