Question

Which term of A.P 13, 24,
35, ........... is 145?​

Answer 1

Answer:

13

Step-by-step explanation:

First term = a1 = 13

Second term = a2 = 24

Hence, common difference = d = a2 - a1 = 24 - 13 = 11

Thus, let 145 to be the nth term

Therefore, a1 + (n - 1)d = 145

=) 13 + (n - 1)11 = 145

=) 13 + 11n - 11 = 145

=) 2 + 11n = 145

=) 11n = 143

=) n = 13

Thus, 143 is the 13th term of the A.P.