Question

A wheel has a diameter 84 cm find how many complete revolution must It make to cover 792m

Answer 1

Diameter of wheel = 84 cm

Radius of wheel = 42 cm

Circumference = 2 pi r

= 2 × 22 × 42 / 7

= 44 × 6

= 264 cm

Distance to be travelled = 792 m = 79200 cm

Number of revolution = Total distance / Circumference of wheel

= 79200 / 264

= 300

Answer 2

Diameter of wheel = 84 cm

Radius of wheel = 42 cm

Circumference = 2 pi r

= 2 × 22 × 42 / 7

= 44 × 6

= 264 cm

Distance to be travelled = 792 m = 79200 cm

Number of revolution = Total distance / Circumference of wheel

= 79200 / 264

= 300

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