Question

The diameter of a wheel is 84 cm. How many revolutions will it make to cover 792 m?

Options

• 200

• 250

• 300

• 350

Answer 1

300

Let d cm be the diameter of the wheel.
We know:
Circumference of the wheel = π × d

`=(22/7xx84)`

= 264 cm

Now,
Number of revolutions to cover 792 m `= ((792xx1000)/264)`

= 300