The diameter of a bicycle wheel is 56 cm. Find the distance travelled when it completes 250 revolutions.

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Solution

Given, diameter of the wheel $d = 56 c m$
Since, circumference =C= $2 π r$ = πd = $\frac{22}{7} \times 56$ cm = 176 cm
Distance travelled when the wheel completes one revolution = 176 cm
∴ Distance travelled when the wheel completes 250 revolution = 176 × 250 cm = 44000 cm

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