Chain Rule Practice Test 1 with solutions

Question : 24 of 40

Marks: +1, -0

A wheel that has 6 cogs is meshed with a larger wheel of 14 cogs. When the smaller wheel has made 21 revolutions, then the number of revolutions made by the larger wheel is:

Validate

Solution:

Cogs	Revolutions
6	21
14	x

⇒

x/{21}

6/{14}

∴ x =

6/{14} × 21

= 9 revolutions

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