To calculate 30 using the numbers 1, 3, 5, 7, 9, 11, 13, and 15 with repetition allowed, you can use a combination of these numbers that add up to 30.
For example, one way to reach the sum of 30 could be:
- 3 + 3 + 3 + 3 + 3 + 3 + 3 + 3 + 3 + 3 = 30
- Alternatively, you could mix larger numbers like: 15 + 15 = 30
You can also create combinations like:
- 9 + 9 + 9 + 3 = 30
- 11 + 9 + 5 + 5 = 30
The key is to keep adding the numbers you have, ensuring the total reaches exactly 30. You can experiment with different combinations to find those that work for you.