The 24th term of an AP is twice its 10th term. Show that its 72nd term is 4 times its 15th term.

Explanation

To solve the problem step by step, we will start by using the properties of an Arithmetic Progression (AP).

### Step 1: Define the terms of the AP
Let the first term of the AP be \( a \) and the common difference be \( d \).

The \( n \)-th term of an AP can be expressed as:
\[
A_n = a + (n-1)d
...