Aptitude - Problems on Trains

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"Do not wait for leaders; do it alone, person to person."
- Mother Teresa

A train travelling at a speed of 75 mph enters a tunnel 31/2 miles long. The train is 1/4 mile long. How long does it take for the train to pass through the tunnel from the moment the front enters to the moment the rear emerges?

A. 2.5 minB. 3 min
C. 3.2 minD. 3.5 min


A train 800 metres long is running at a speed of 78 km/hr. If it crosses a tunnel in 1 minute, then the length of the tunnel (in meters) is:

A. 130B. 360
C. 500D. 540


A 300 metre long train crosses a platform in 39 seconds while it crosses a signal pole in 18 seconds. What is the length of the platform?

A. 320 mB. 350 m
C. 650 mD. Data inadequate


A train speeds past a pole in 15 seconds and a platform 100 m long in 25 seconds. Its length is:

A. 50 mB. 150 m
C. 200 mD. Data inadequate


A train moves past a telegraph post and a bridge 264 m long in 8 seconds and 20 seconds respectively. What is the speed of the train?

A. 69.5 km/hrB. 70 km/hr
C. 79 km/hrD. 79.2 km/hr

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