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Two bottles contain acid and water in the ratio 2 : 3 and 1 : 2 respectively. These are mixed in the ratio 1 : 3. What is the ratio of acid and water in the new mixture ?
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- 7:13
- 11:57
- 23:37
- 1:3
Correct Option: A
In 1 litre of first bottle,
| Quantity of acid = | litre | |
| 5 |
| Quantity of water = | litre | |
| 5 |
Quantity of water = 2 litres
In the resulting mixture,
Acid : Water
| = |  | + 1 |  | | + 2 | | ||
| 5 | 5 |
| = | : | ||
| 5 | 5 |
= 7 : 13
