Question

A bicycle wheel makes 5000 revolutions in moving 11km . find the diameter of the wheel

Answer 1

Hiii friend,


Distance covered by the wheel in 1 revolution = 11 × 1000 × 100/500 cm = 220 cm

The circumference of the wheel = 220 cm

Let the diameter of the wheel be D cm

Then,

πD = 220

22/7 × D = 220

D = 220 × 7/22 = 70 cm

Hence,

The diameter of the wheel is 70 cm


HOPE IT WILL HELP YOU...... :-)

Answer 2

hi

A bicycle wheel makes 5000 revolutions in moving 11km

1km = 1000 m 

11km = 11000m

5000 revolutions  =  11000m

now circufercence

=>distance/revolution

=>11000/5000

=>2.2 m

=>220cm

now let us find the radius

circumference =  22/7 * r *2

so,

220 cm  = 44/7 * r

=>r = 220 * 7/44

=> radius = 7*5

=> 35 cm


since diameter = 2 *radius

=>35*2

=>70 cm

hope it helps u

:)