What is the sum of the first 20 terms of an arithmetic progression whose first term is 5 and common difference is 3?
A. 670
B. 620
C. 610
D. 600
Answer:A
What is the sum of the first 20 terms of an arithmetic progression whose first term is 5 and common difference is 3?
A. 670 B. 620 C. 610 D. 600