the redius of a wheel of of vehicles is 42 cm. how many revolution will it complete in a journey of 19.8 km??
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Step-by-step explanation:
radius of the wheel =42cm
circumference of the wheel =2πr
2*22/7*42=264cm
In traveling 264 cm,the number of revolution=1
Therefore, in traveling 19.8 km the number of revolution=264/19.8
=13.33
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