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  1. A wheel make 4000 revolution in moving a distance of 44 km. Find the radius of the wheel.
    1. 15 m
    2. 27 m
    3. 25 m
    4. 28 m
    5. None of the above
Correct Option: E

Distance covered in 1 revolution
= (44 x 1000) / 4000
= 11 m

According to the question,
2πr = 11
⇒ (44/7) x r = 11
∴ r = (11 x 7) / 44 = 1.75 m


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