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The diameter of the front wheel of an en...

The diameter of the front wheel of an engine is 2x cm and what of rear wheel is 2y cm. To cover the same distance, find the number of times the rear wheel will revolve when the front wheel revolves 'n' times.

A

`n/(xy)`

B

`(ny)/x`

C

`(nx)/y`

D

`(xy)/n`

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