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If the diameter is 700 mm then the radius is 700/2 = 350mm

The circumference of the circle is 2πr = 2π.350 = 2199.115 mm

1 kilometre = 1000 metres = 1000000 mm : 2km = 2000000mm

Number of revolutions = distance travelled ÷ circumference of wheel.

2000000 ÷ 2199.115 = 909. 46 revolutions

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Q: How many revolutions will a wheel make in travelling at 2 kilometers if its diameter is 700 millimeters?
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