Train A is 75 m long and travels at a uniform speed of 54 km/hour. Train S is 125 m long and travels at a uniform speed of 36 km/hour in the direction opposite to that of Train A. If these trains are crossing at a double-track stretch, what is the time taken for the two trains to fully clear each other ?
A. 10 seconds
B. 8 seconds
C. 7.2 seconds
D. 6.6 seconds
Answer:B
Train A is 75 m long and travels at a uniform speed of 54 km/hour. Train S is 125 m long and travels at a uniform speed of 36 km/hour in the direction opposite to that of Train A. If these trains are crossing at a double-track stretch, what is the time taken for the two trains to fully clear each other ?
A. 10 seconds B. 8 seconds C. 7.2 seconds D. 6.6 seconds