Question

The 10^th and 18^th terms of an A.P. are 41 and 73 respectively. Find 26^th term.

Answer 1

In the given problem, we are given 10^th and 18^th term of an A.P.

We need to find the 26^th term

Here,

Now, we will find and using the formula

So,

Also,

So, to solve for a and d

On subtracting (1) from (2), we get

Substituting d=4 in (1), we get

Thus,

Substituting the above values in the formula,

Therefore,