Question

The diameter of the wheel of the bus is 90 cm. How many times must the wheel of the bus rotate for covering the distance of 14.13km?

Answer 1

radius of wheel 45 cm.
circumference of wheel
2pie r
2×22/7×45

Answer 2

Given
Dia of wheel =90cm
Radius =45cm

The distance covered in one revolution = Circumference of wheel

Circumference =2 pi r

=2x22/7 x45

=1980/7cm

=282.86cm

Changing in km =282.86/100000

=282.86x10^-5

Number of revolution required =14.13/282.86x10^-5

= 4995.45

=4996 revolution


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