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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 | 
 
	