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2016-05-04T10:33:50+05:30

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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
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