If the sum of first 14 terms of an A.P. is 1050 and its first term is 10, find the `20^(th)` term.

Explanation

To solve the problem step by step, we need to find the 20th term of an arithmetic progression (A.P.) given that the sum of the first 14 terms is 1050 and the first term is 10.

### Step 1: Identify the given values
- First term (a) = 10
- Sum of the first 14 terms (S₁₄) = 1050

### Step 2: Use the formula for the sum of the first n terms of an A.P.
The formula for the sum of the first n terms of an A.P. is given by:
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