MCQOPTIONS
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| 1. |
The wheel of an engine of 300 cm in circumference makes 10 revolutions in 6 seconds. What is the speed of the wheel (in km/h)? |
| A. | 18 |
| B. | 20 |
| C. | 27 |
| D. | 36 |
| Answer» B. 20 | |