A bicycle wheel has a diameter (including the tyre) of 56 cm. The number of times the wheel will rotate to cover a distance of 2.2 km is (Assume π=22/7)

• 1250
  
  In 1 rotation wheel will cover distance=Perimeter=Pi*Diameter=(22/7)*56 cm.
  So to cover total distance of 2.2 km=2.2*1000 m=2.2*1000*100 cm., wheel will rotate (2.2*1000*100)/[(22/7)*56] =1250 times
• 9 years agoHelpfull: Yes(1) No(0)
• 1250
  
  1 rotation distance covered =2*22/7*28 =176 cm
  so to cover 2.2 km
  
  2.2*100*1000 /176=1250
• 8 years agoHelpfull: Yes(0) No(0)