Question

find 18 th term of AP 8 12 16​

Answer 1

Answer:

76

Step-by-step explanation:

Given,

A.P :- 8 , 12 , 16

To Find :-

18th term of an A.P

Formula Used :-

nth term of A.P (t_n) = a + (n- 1)d

where,

a = first term

d = common difference

Solution :-

According to Question :-

first term = a = 8

common difference(d)  = , 12 - 8

= 4.

As, we need to find 18th term , so n = 18

t_18 = 8 + (18 - 1)4

= 8 + 17(4)

= 8 + 68

= 76

Since, 18th term of an A.P = 76