Question

If there are 60 terms of an 80 1 st term of which is 8 and the last term 185.Find the 31 th term.

Answer 1

Answer:

98.

Step-by-step explanation

Information given:

The A.P ,in total ,consists of 60 terms

a1=8 and l=185=a60 (we already know that there are only 60 terms and the last term would be the 60th term)

a60=a+59d

185=8+59d

185-8=59d

177/59=d

3=d

a31=a+30d

=8+30*3

=8+90

=98