Question

find the 20th term from the last term of AP 3,8,13..........253​

Answer 1

Answer:

Step-by-step explanation:

See solution below

Answer 2

$\bf\huge\underline{Question}$

Find the 20th term from the last term of AP 3,8,13.....253.

$\bf\huge\underline{Answer}$

We have, the last term (l) = 253

Here, d = 8 - 3 = 5

Since, then n term before the last term is given by l - (n - 1)d

Therefore, We have 20th term from the last term

=> l - (20 - 1) × 5

=> 253 - 19 × 5

=> 253 - 95

=> 158