Question

The diameter of the wheel of acar is 70 cm. How many rvolution will it make to travel 1.65 km?

Answer 1

radius of the wheel= 35 cm

The circumference of the wheel=

$2\pi r = 2 \times \frac{22}{7} \times 35 = 220cm = 2.2m$

1.65 km= 1650m

No. of revolution

$= \frac{1650}{2.2} = 750$