Two gears

The two gears fit together. The larger gear has 32 teeth, the smaller has 20 teeth less. How many times does turn a smaller gear if the bigger gear turns three times?

Correct result:

n2 =  8

Solution:

z1=32 z2=z120=3220=12  n1=3  s1=s2 n2 z2=n1 z1 n2=n1 z1z2=3 3212=8



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