Problem \# 4: A gearbox is needed to provide an exact 24:1 increased in speed, while minimizing the overall gearbox size (total of 4 gears as shown in figure). A) Find the minimum number of teeth to avoid interference B) Specify appropriate teeth numbers Problem \#5: A gearbox (Compound Reverted Gear Train with total of 4 gears) as shown in the figure is needed to provide an exact 24:1 increase in speed, while minimizing the overall gearbox size. The input and output shaft should be in-line. Specify appropriate teeth numbers