Let's evaluate the sums in both columns.
Column A: The expression is \( 0.5 + 34 \).
Calculating this: \[ 0.5 + 34 = 34.5 \]
34.5 is a rational number (it can be expressed as the fraction \( \frac{69}{2} \)).
Column B: The expression is \( 3 - \sqrt{3} + 25 \).
Calculating this: \[ 3 - \sqrt{3} + 25 = 28 - \sqrt{3} \]
Here, \( \sqrt{3} \) is an irrational number. Therefore, \( 28 - \sqrt{3} \) is also irrational since the difference of a rational number and an irrational number is irrational.
Now that we have the sums:
- Column A: \( 34.5 \) (rational)
- Column B: \( 28 - \sqrt{3} \) (irrational)
Now, let's assess the statements:
- Statement #1: Only Column A has a rational sum. (True)
- Statement #2: Only Column B has a rational sum. (False)
- Statement #3: Column A and Column B both have rational sums. (False)
Therefore, the correct number associated with the true statement is 1.