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1. |
How many seconds will a 500-meter-long train take to cross a man walking with a speed of 3 km/hr. in the direction of the moving train if the speed of the train is 63 km/hr? |
A. | 25 sec |
B. | 30 sec |
C. | 40 sec |
D. | 45 sec |
Answer» C. 40 sec | |