BRAINLIST---
A simple gear train below has a 15 tooth DRIVER gear and a 60 tooth DRIVEN gear. What is the gear ratio of the following system?

if not right or not an answer I will be just marking it

BRAINLIST A simple gear train below has a 15 tooth DRIVER gear and a 60 tooth DRIVEN gear What is the gear ratio of the following system if not right or not an class=