MCQOPTIONS
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| 1. |
A train moves with the speed of 180 km/hr; then its speed in metres per-second is: |
| A. | 50 m per sec. |
| B. | 60 m per sec. |
| C. | 70 m per sec. |
| D. | 80 m per sec. |
| Answer» B. 60 m per sec. | |