Let the radius of the wheel is r cm.
Given that the diameter of the wheel is 2r = 35 cm.
⇒ The radius of the wheel is r = 17.5 cm.
Total distance cover by wheel in a single revolution is the circumference of the wheel = 2πr
= 2 x 22/7 x 17.5
= 2 x 22 x 2.5
= 110 cm
Let n revolutions are required to cover the distance 440 m = 44000 cm
∴ n × 110 = 44000
⇒ n = 44000/110 = 400
Hence, 400 revolutions of wheels are required to cover the distance 440m.