Question

the radius of A wheel of a bus 3.5 metre how many rotation will complete rising a distance of 22 km

Answer 1

circumference of circle
$\pi \times d$
22÷7×3.5=11m.
when the wheel completes one rotation it crosses a distance of 11m.
{1 rotation=1 circumference}
total number of rotations =distance÷circumference
22000÷11
=2000