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1. |
Two trains, of same length, are running on parallel tracks in the same direction with speed 60 km/hour and 90 km/hour respectively. The latter completely crosses the former in 30 seconds. The length of each train (in metres) is |
A. | 125 |
B. | 150 |
C. | 100 |
D. | 115 |
Answer» B. 150 | |