Question

(1) Find the 15th term of the A.P. 3, 8, 13, 18, ....​

Answer 1

Answer:

here we know the first term ie; a=3

common difference d= 5

to find the. nth term ie, the 15th term by using the eqtn

tn = a+(n-1)d

so t15= 3+ (15-1)5

= 3+ 14×5

=73