Question

Find the 18th term from the last of the A.P. : 28, 23, 18, 13, ....., –82.​

Answer 1

Answer:

18th term from last = 18 term from reversed A. P.

Step-by-step explanation:

-82, ........, 13,18,23,28

a = -82 and d = 5

So, a18 = a + (n-1) d = -82 + 17*5 = -82 +85 = 3