Series and sequences
posted by Shaira on .
Three numbers a,b, and c form a geometric series so that a+b+c=35 and abc=1000. Find the values of a,b,c.

abc = a^3r^3 = 1000
since 1000 = 10^3, we must have a=2,r=5 or a=5,r=2
Looks like 5,10,20