Question

Which term of AP 3,15,27,29....................
Is more than its 54th term ?

Answer 1

hey,

here ur answer

a=3, d = 12

a54 = a + (54-1)d

a54= a + 53d

a54 = 3  + 53*12

a54 =  3 + 636

a54 = 639

hence 54 term is 639