Initially, the mixture has 8 parts water and 2 parts salt, giving a total of \(8 + 2 = 10\) parts.
Now, when one part of each (water and salt) is added, the new amounts become:
- Water: \(8 + 1 = 9\) parts
- Salt: \(2 + 1 = 3\) parts
Now, we can find the new ratio of salt to water:
\[ \text{Ratio of salt to water} = \frac{\text{parts of salt}}{\text{parts of water}} = \frac{3}{9} \]
This simplifies to:
\[ \frac{3}{9} = \frac{1}{3} \]
In the context of the options provided (2 to 9, 3 to 8, 3 to 9, 9 to 3), the answer that corresponds to the ratio of salt to water is:
3 to 9.
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