Question

The radius of a circle wheel is 21 cm . The number of revolution it will make it traveling 924m is ?

Answer 1

Answer:

700.63694268  - Approx. 701

Step-by-step explanation:

I will try to keep it simple,

The number of revolutions completed by rotating a wheel in a given distance

= Distance covered/Circumference of Wheel

**Circumference of given Wheel

= 2πr

= 2×3.14×21 (since, r = 21cm)

= 131.88 cm

**Distance covered (cm) = 924×100 = 92400 cm

Substituting the generated values, we get;

Revolutions = 92400/131.88

= 700.63694268

Approx. 701 Revolutions will be completed by the wheel.

Hope it helps!

Answer 2

Circumference of the wheel=2×22/7×21

=132cm=1.32m

No. of revolutions made=924m/1.32m

=700 revolutions.