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1. |
A train moving at the speed of 90km/h crosses a bridge in 30 seconds. Another train 60 m shorter moving at the speed of 54 km/hr crosses the same bridge. Find the time taken by second train to cross the bridge. |
A. | 46 seconds |
B. | 42 seconds |
C. | 44 seconds |
D. | 40 seconds |
E. | 48 seconds |
Answer» B. 42 seconds | |