Let's get Mathematical Part 10

Given: hour wheel 48 teeth, minute wheel pinion 10 leaves, cannon pinion 12 leaves. Calculate the number of teeth of the minute wheel.

Motion work ratio is almost always 12:1

N1 = Z1 Z3
N2 Z2 Z4

1 = 10 x 12
12 48 x ?

1 x 10
4 x ?

10
120

120/4 = 30