Explanation:

- Let's analyze the pattern in the series: 5, 4, 10, 35, 96, 220.

- Each term appears to be derived by using some operation related to its preceding term(s).

1. Start with 5.

2. Subtract 1 to get 4. (5 - 1 = 4)

3. Multiply by 2.5 to get 10. (4 * 2.5 = 10)

4. Multiply by 3.5 to get 35. (10 * 3.5 = 35)

5. Multiply by 2.5 to get 87.5. (35 * 2.5 = 87.5), which suggests 96 is incorrect.

6. Multiplying 87.5 by 2.5 indeed gets closer to 220.

- Check options for the wrong number:

- Option 5, 96 seems wrong as described based on this pattern.