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1. |
Diameter of wheel of a cycle is 21 cm. The cyclist takes 45 minutes to reach a destination at a speed of 16.5 km/hr. How many revolutions will the wheel make during the journey? |
A. | 12325 |
B. | 18750 |
C. | 21000 |
D. | 24350 |
Answer» C. 21000 | |