In a compound gear train, if the initial driver gear rotates at 600 RPM and the overall gear ratio is 5:1, the final driven gear rotates at 120 RPM. Therefore, the velocity ratio is 5:1.

Find the number of teeth on the third gear. (0.5 Mark) 3. Below is a compound gear train that has four gears: A, B, C and D where gears C and B represent a compound gear as they are fixed together. If ...