Question

In making 1000 revolutions, a wheel covers 88 km. The diameter of wheel is

Answer 1

Answer:

Step-by-step explanation:

Distance covered in making 1000 revolutions = 88 km= 88000 m

∴Distance covered in making 1 revolution = 88000/1000 m = 88 m

And distance covered in one revolution of the wheel will be the same as the circumference of the wheel .

then, circumference of the wheel will be 88 m

let, the diameter of the wheel be d m

∴By condition

22/7 d = 88

⇒ d = 88 * 7/22

⇒d = 4*7

⇒d=28

∴ Diameter of the wheel=28 m

Answer 2

Step-by-step explanation:

Distance covered in making 1000 revolutions = 88 km= 88000 m

∴Distance covered in making 1 revolution = 88000/1000 m = 88 m

And distance covered in one revolution of the wheel will be the same as the circumference of the wheel .

then, circumference of the wheel will be 88 m

let, the diameter of the wheel be d m

∴By condition

22/7 d = 88

⇒ d = 88 * 7/22

⇒d = 4*7

⇒d=28

∴ Diameter of the wheel=28 m