Find the Radius of the Wheel, If

A wheel makes 4000 revolutions in moving a distance of 44 kms. Find the radius of the wheel

  1. 69 metres
  2. 57 metres
  3. 77 metres
  4. 175 metres
Monis Rasool Professor Asked on 2nd June 2015 in Maths.
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1 Answer(s)

Answer: (4) 1.75 metres
Explanation:-
Distance covered by wheel in 4000 revolutions  = 44km
44km = 44 x 1000
= 44000 metres
circumference  of wheel = distance covered in one round by wheel
= 44000/4000
thus, circumference of wheel = 11 metres = 2pr
r = 11/2p
r = 11 x 7 /2 x 22
r = 1.75 metres
Hence, the radius of wheel is 1.75 metres.

Anurag Mishra Professor Answered on 2nd June 2015.
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