A cycle covers a distance of 120 km making 1000 revolutions per wheel.

1.	A cycle covers a distance of 120 km making 1000 revolutions per wheel. Find the radius of the wheel of the cycle?1). 12.50 m2). 18.98 m3). 19.09 m4). 20.48 m
Answer» Number of REVOLUTIONS MADE by one wheel = 1000 ⇒ Distance covered = 120 km ⇒ Distance covered in one revolution = 120/1000 = 0.12 km ⇒ Distance covered in one revolution = 0.12 ? 1000 = 120 m ⇒ Thus, 2$(\pi )$R = 120 m ⇒ 2 $(\times \FRAC{{22}}{7})$(\times )$ r = 120 ⇒ r = 19.09 m ∴ Radius of wheel of the cycle = 19.09 m

A cycle covers a distance of 120 km making 1000 revolutions per wheel. Find the radius of the wheel of the cycle?1). 12.50 m2). 18.98 m3). 19.09 m4). 20.48 m

Answer»

Number of REVOLUTIONS MADE by one wheel = 1000

⇒ Distance covered = 120 km

⇒ Distance covered in one revolution = 120/1000 = 0.12 km

⇒ Distance covered in one revolution = 0.12 ? 1000 = 120 m

⇒ Thus, 2$(\pi )$R = 120 m

⇒ 2 $(\times \FRAC{{22}}{7})$(\times )$ r = 120

⇒ r = 19.09 m

∴ Radius of wheel of the cycle = 19.09 m

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A cycle covers a distance of 120 km making 1000 revolutions per wheel. Find the radius of the wheel of the cycle?1). 12.50 m2). 18.98 m3). 19.09 m4). 20.48 m

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