- The average of 12 numbers is 15.
- Total sum of these numbers = 12 * 15 = 180.
- Average of the first four numbers is 13.
- Total sum of the first four numbers = 4 * 13 = 52.
- To find the average of the remaining numbers:
- Total sum of the remaining 8 numbers = 180 - 52 = 128.
- Average of the remaining 8 numbers = 128 / 8 = **16**.

- Option 1: 16 ✅
- Option 2: 14
- Option 3: 12
- Option 4: 18

The correct answer is **Option 1: 16**.
YOUR ANSWER IS RIGHT.