The diameter of a circular wheel is 1.4 m. How many revolutions will it make in travelling 22 km?
diameter of the circular wheel = 1.4
radius = 1.4/2 = 0.7
distance travelling in 1 revolution (C) = circumference of the wheel
=2$$\pi$$r
=$$2\times \frac{22}{7}\times 0.7$$
=4.4m
number of revolutions made by the wheel travelling 22kmÂ
 =22km/C
 = 22000m/4.4m
 =5000 revolutions
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