Question

The radius of a circular wheel is $1\frac{3}{4}m$. How many revolutions will it make in traveling $11km$?

Answer 1

Distance travelled$=11km=1100m$
Distance travelled in one revolution $=$ Circumference of the wheel
$=2\times \pi \times r=2\times \frac{22}{7}\times \frac{7}{4}$$=11m$
$\therefore$ number of revolutions in $11km$
$=\frac{11000}{11}$
$=1000$ revolutions