Question

The radius of a wheel is 84 cm . How many revolutions will it make to go 52.8km

Answer 1

Here is the simple formula to find number of revolutions

Number of Revolutions = (Total distance Covered) ÷ (Circumference of wheel)

Here distance covered ( in cm) = 52.8 × 1000 × 100 (Km to M to CM)

Circumference = 2 × ( 22/7) × 84 or 2 × 22 × 12

Number of Revolutions = (52.8 × 1000 × 100) ÷ (2 × 22 × 12)

                                      = 10000

∴ Wheel will take 10000 revolutions to cover a distance of 52.8 km