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11. A bicycle wheel of diameter 70cmcovers a certain distance after making100 revolutions. How many metresdid it cover?A. 22mB. IlmC. 220mD. 2200m |
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Answer» Diameter of wheel = 70 cmRadius of wheel r = 70/2 = 35 cm or .35 m Distance covered by wheel in one revolution = circumference of wheel Thus, Distance covered by wheel in 100 revolutions= 2*pi*r*100= 2*22/7 *. 35*100= 44*5= 220 m (C) is correct option |
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