For questions $1-3$: Three gears are assembled together, the first $($driving$)$ gear has $48$ teeth, the second $($idler$)$ gear has $36$ teeth and the last $($driven$)$ gear has $16$ teeth. The driving gear has a speed of $120$ rpm going clockwise.

Is this a Speed or Torque multiplier?

What is the speed $($rpm$)$

What is the direction of the driven gear?

A planetary gear configuration is shown below. If $A=12$ and $C=48,$ what is the rotation of the driver D per rovolution of the follower. Write your answer as a ratio.

For questions $5-7$: A spur gear of $6$ diametral pitch has $16$ teeth.

$5.$ Find the addendum

$6.$ Find the pitch diameter

$7.$ Find the outside diameter