Set Theory
Probability
Level
1
Find the sum of the first 14 terms of this progression, 2, 5, 8, 11,.........?
The answer is 301.
This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try
refreshing the page, (b) enabling javascript if it is disabled on your browser and,
finally, (c)
loading the
non-javascript version of this page
. We're sorry about the hassle.
1 solution
Sum of first 14 terms = 142 {2 * 2 + (14 - 1) * 3}
= 7{4 + 39}
= 7 * 43
= 301