Question

Find the 6th term from the end of the AP 5, 7, 9, ...., 201.

Answer 1

Here, a = 5, d = (7 - 5) = 2, l = 201 and n = 6^th

Now, n^th term from the end = [l - (n - 1)d]
6^th term from the end = [201 - (6 - 1) ⨯ 2]
= [201 - (5 ⨯ 2)] = (201 - 10) = 191
Hence, the 6^th term from the end of the AP is 191.