Elementary Technical Mathematics

Published by Brooks Cole
ISBN 10: 1285199197
ISBN 13: 978-1-28519-919-1

Chapter 7 - Section 7.4 - Inverse Variation - Exercises - Page 288: 26

Answer

$30\ teeth$

Work Step by Step

The relationship of a gear system is: (no. of teeth in A)(rpm of A) =(no. of teeth in B)(rpm of B). Now, we have: $$ 80\times 1.25=x\times 3.33\Longrightarrow x=\frac{80\times 1.25 }{3.33}=30\ teeth .$$
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