Find the 18th and nth term of the A.P. given by:
8, 13, 18, ...
Answer & explanation
Correct answer: option 2
Given A.P.: 8, 13, 18, ...
a= 8
d = 5
18th term = a + 17d = 8 + 17*5 = 93
nth term = a + (n-1)d = 8 + (n-1)*5 = 3 + 5n
The correct answer is Option (2) → $93, 3+5n$