A bicycle wheel of radius 35 cm makes n revolutions in moving 11 km. What is the value of n? (Take \pi=\frac{22}{7})

Explanation

Circumference of the wheel = 2\pi r = 2 \times \frac{22}{7} \times 35 = 220 cm = 2.2 m. Total distance covered = 11 \text{ km} = 11,000 m. Number of revolutions n = \frac{\text{Distance}}{\text{Circumference}} = \frac{11000}{2.2} = 5000.

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