GRE quiz: Age problems

Armani is now 16 years older than Rio. 8 years ago, Armani’s age was 5 times Rio’s age. How old is Armani now?

A. 28
B. 30
C. 32
D. 34
E. 36

Answer: A. 28

Learn how to solve this:
https://app.achievable.me/study/gre/learn/age-problems