Find the sum of all the 11 terms of an AP whose middle most term is 30.

Explanation

To find the sum of all 11 terms of an arithmetic progression (AP) whose middlemost term is 30, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the number of terms (n)**:
- We are given that there are 11 terms in the AP. Thus, \( n = 11 \).

**Hint**: Remember that the number of terms in an AP can be odd or even. Here, \( n \) is odd.
...