Question

An arithmetic sequence has a common difference of 5 and the 3rd term is 15. What is the 5th term?

Answer 1

Explanation:

Given,

d=5

a3=15

Now, a3=a+2d

= 15=a+10

= 15-10=a

= 5=a

a5=a+4d

= 5+20

= 25