How many times a wheel of radius 28 cm must rotate to go 352 m? (take π = 22/7)
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Radius of the wheel = 28 cm
∴ Circumference = 2πr = 2 × 22 / 7 × 28 = 176 cm
Number of rotations made by the wheel in going 352 m or 35200 cm
=35200 / 176=200
Hence, the required number of rotation = 200.
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