Question

Find the 18th term and 23rd term of the A. P 16, 11, 6,....

Answer 1

hope it helps you.
thnks

Answer 2

18th term of the a. P. Is

=a+(n-1)d

Now, a=16 , n=18, d=6-11=-5

So, the term will be

=16+(18-1)(-5)

=16-85

=-69

Similarly 23rd term will be

16+(23-1)(-5)

=16-110

=-94(answer)