The diameter of the driving wheel of a bus in 140 cm.

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 11 kmph?

Quiz

Answer/Solution

41.67

Steps/Work

distance covered in 1 min=(66*1000)/60=183.33cm
circumference of the wheel=(2*(22/7)*.70)=4.4m
no of revolution per min=183.33/4.4=41.67
ANSWER:D

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The diameter of the driving wheel of a bus in cm. How many revolutions per minute must the wheel make in order to keep a speed of kmph?

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