Answer:
21 + 23 + 25 + 27 + 29 = 125
Step-by-step explanation:
cube of 5 = 125
I did't use any formula, I tried some cases.
Dividing 125 fro 3, then 4 and finally 5... that's works.
125:5 = 25
so I sum: 21 + 23 + 25 + 27 + 29 = 125
This is the way I solved it. But there should be a better one.
