A wheel of a bicycle has a radius of 42 cm. How many revolutions will it make to cover a distance of 1.32 km?
Show answer & explanation
Correct answer: C
Explanation
Given:
Radius of the wheel = 42 cm
Distance covered = 1.32 km = 132,000 cm
Distance covered in one revolution (circumference) = 2 × 22/7 × 42= 264 cm
Number of revolutions = 132,000 / 264= 500