bicycle wheel has a diameter of 70 cm .how many times will the wheel rotate to cover a distance of 4.4 km ?
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Answer:
Diameter of wheel=70cm
radius of wheel=35cm.
distance covered by wheel in 1 revolution=2*22/7*35=220cm
total distance covered=4.4km=4.4*1000 m=4400*100 cm=440000cm
total number of revolution=440000/220=2000
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= 10 times
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