An algebra problem by edil tizon
Algebra
Level
2
The numbers a,b,c form an arithmetic progression with sum a+b+c=341, while a−1,b+2,c+13 form a geometric progression. Find the sum of the members of the geometric progression.
The answer is 355.
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.
The sum is a−1+b+2+c+13=(a+b+c)−1+2+13=341−1+15=355