Each wheel of a bicycle has a radius of 70 cm. How many complete revolution does each wheel make to cover a distance of 2 km 640 m
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total distance is equal to 2 km 520 m = 252000 cm and radius of wheel is 70 cm so circumference of wheel = 2×22÷7×70 cm= 440 cm
so ,complete revolution should be252000÷440= 572 complete revolutions
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