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A bicycle wheel has a diameter (including the tyre) of 56 cm. The number of times the wheel will rotate to cover a distance of 2.2 km is (Assume π = 22/7)
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- 625
- 1250
- 1875
- 2500
- 625
Correct Option: B
Distance covered by wheel in 1 revolution = π × diameter
= | × 56 = 176 cm | |
7 |
Total distance = 2.2 km = (2.2 × 1000 × 100) cm = 220000 cm
∴ Number of revolutions = | = 1250 | |
176 |