Question

Determine the sum of the first twenty five terms of the sequence whose first five terms are 5,14,23,32 and 41

Answer 1

Answer:

Step-by-step explanation:

This is an arithmetic sequence. Each term is 9 more than the preceding term.

The 25th term is 5+24*9 = 1085.

Sum of first 25 terms is 25(5+1085)/2 = 13625