Question

An express train is running between two stations with a uniform speed. If the diameter of each wheel of the train is and each wheel makes revolutions per minute, find the speed of the train.

A

B

C

D

Medium

Solution

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Correct option is
D

Diameter of the wheel
Therefore,
Radius
It makes revolution per minutes.
Distance travelled in revolution
                                                           
                                                           
                                                           
Distance travelled in revolution
Therefore,
Speed

           

           

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