The diameter of the driving wheel of a bus in 140 cm. How many revolutions per minute must the wheel make in order to keep a speed of 14 kmph?  Choose the correct choice from the following answers
A) 53.03 B) 50.01 C) 23.23 D) 24.23 E) 41.23
distance covered in 1 min=(14*1000)/60=233.33m   circumference of the wheel=(2*(22/7)*.70)= 
<gadget id="calculator">(2*(22/7)*.70)</gadget>
<output>4.4</output>
4.4m   no of revolution per min=233.33/4.4=53.03   53.03NSWER:53.03
<result>A</result>
The diameter of the driving wheel of a bus in 140 cm. How many revolutions per minute must the wheel make in order to keep a speed of 14 kmph?