Question

A bicycle wheel makes 5000 revolutions in moving
11 km. Then the radius of the wheel (in cm) is
(Take a = )
22/7​

Answer 1

Answer:

Radius of the bicycle wheel  = 35cm

Step-by-step explanation:

Let "r" be the radius of the wheel.

If C denotes the circumference,

C = 2Πr

In one revolution, the bicycle covers a distance equal to its circumference.

In 5000 revolutions, the distance covered = 5000*C

It is given that this distance = 11km = 11,000m

Thus,

5000*2*Π*r = 11000m

2*Π*r = 11/5

2*(22/7)*r = 11/5

r = (11*7)/(5*2*22)  .........Cross multiplication

r = (7/20)

r = 0.35m

r = 35cm .............(1m = 100cm)