Insert 6 numbers between 3 and 24 such that the resulting sequence is an A. P.

Explanation

To solve the problem of inserting 6 numbers between 3 and 24 such that the resulting sequence is an Arithmetic Progression (A.P.), we can follow these steps:

### Step 1: Identify the first and last terms
The first term \( a \) is 3 and the last term \( T_8 \) is 24. Since we need to insert 6 numbers between them, the total number of terms in the sequence will be 8.

### Step 2: Use the formula for the nth term of an A.P.
The formula for the nth term of an A.P. is given by:
\[
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