Question

The radius of a wheel of a cycle is 52.5cm.how many revolutions will it make in going 6.6km.

Answer 1

Answer:

Let the number of revolution be n

A/q

n× 2πr = distance

distance = 52.8×1000×100 cm

⇒n ×2π 84 = 52.8×1000×100 

⇒n = ( 52.8×1000×100 )/(2π×84)

     =10000

∴ number of revolution is 10000

Answer 2

Answer:

answer will be 2000 revolution

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