Question

For the arithmetic sequence beginning with the terms {11, 17, 23, 29, 35} what is the sum of the first 17 terms

Answer 1

35

Explanation:

Sum of the first 17th term can be calculated as follows

= a + (n-1)d

a= 11

d= 6

n= 5

11+(5-1)6

= 11+ 4(6)

= 11+24

= 35

Hence the sum of the first 17th term is 35