Question

If π is taken as `22/7` the distance (in metres) covered by a wheel of diameter 35 cm, in one revolution, is

पर्याय

•  2.2

• 1.1

•  9.625

•  96.25

Answer 1

Diameter of wheel (d) = 35 cm
Radius of wheel (r) = `"d"/2 = 35/2` cm

∴ The distance covered by the wheel in 1 revolution is equal to the circumference of the wheel = 2πr

= `2 × 22/7 × 35/2`

= `cancel2 × 22/(cancel(7)1) × (cancel(35)5)/cancel2`

= 22 × 5

= 110 cm

The distance covered by the wheel in one revolution (in m) is given by = `110/100` = 1.1 m