Question

a road roller make 14000 Revolution if the radius of the roller is 2.5 the distance covered is

Answer 1

apply
$2\pi \: r$
then multiply by 14000.

Answer 2

Heya,

Given:-
Revolution = 14000
Radius = 2.5m

To find:-
Distance covered

Solution:-

Circumference = 2πr
Circumference = 2 × 22/7 × 2.5
Circumference = 110/7
Circumference = 15.714285...
Circumference = 15.71m

Distance covered = 15.71 × 14000
Distance covered = 219940m

Hope my answer helps you :)

Regards,
Shobana