The diameter of each wheel of car is 70 cm. If each wheel rotates 400 times per minutes, then the speed of the car (in km/hr) if : $$\left( {{\text{Take }}\pi= \frac{{22}}{7}} \right)$$

The diameter of each wheel of car is 70 cm. If each wheel rotates 400

1.	The diameter of each wheel of car is 70 cm. If each wheel rotates 400 times per minutes, then the speed of the car (in km/hr) if : $$\left( {{\text{Take }}\pi= \frac{{22}}{7}} \right)$$
A.	.28 km/hr
B.	28 km/hr
C.	2.8 km/hr
D.	.528 km/hr
Answer» D. .528 km/hr

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The diameter of each wheel of car is 70 cm. If each wheel rotates 400 times per minutes, then the speed of the car (in km/hr) if : $$\left( {{\text{Take }}\pi= \frac{{22}}{7}} \right)$$

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