Question

With his usual speed, if a person covers a circular track of radius 150 m in 9 minutes, find the distance that he covers in 3 minutes (π = 3.14)

Answer 1

Radius of the circular track = 150 m

Distance covers in 9 minutes = Perimeter of the circle = 2 × π × r units

Distance covered in 9 min = 2 × 3.14 × 150 m

Distance covered in 1 min = `(2 xx 3.14 xx 150)/9  "m"`

Distance covered in 3 min = `(2 xx 3.14 xx 150 xx 3)/9` = 314 m

Distance he covers in 3 min = 314 m