Question

Q. Which of the AP: 3, 15, 27, 39, ... will be 132 more than
its 54th term?​

Answer 1

Answer:

Given that the term is 132 more than its 54th term = 639 + 132 = 771. n = 65. Therefore the 65th term is 132 more than its 54th term.

Answer 2

A54= a + 53d

=3+53*12

=3+636

=639

= 639+132

= 771

an = a+(n-1)d

771=3+(n-1)12

771-3 = (n-1)12

768/12=n-1

64+1 = n

65 = n

so 65th term will be 132 more than 54th term