16. | A train travelling at a speed of 75 mph enters a tunnel 3(1/2) 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 min |
b. | 3 min |
c. | 3.2 min |
d. | 3.5 min |
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Answer: (b).3 min
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17. | 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. | 130 |
b. | 360 |
c. | 500 |
d. | 540 |
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Answer: (c).500
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18. | 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 m |
b. | 350 m |
c. | 650 m |
d. | Data inadequate |
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Answer: (b).350 m
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19. | A train speeds past a pole in 15 seconds and a platform 100 m long in 25 seconds. Its length is: |
a. | 50 m |
b. | 150 m |
c. | 200 m |
d. | Data inadequate |
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Answer: (b).150 m
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20. | 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/hr |
b. | 70 km/hr |
c. | 79 km/hr |
d. | 79.2 km/hr |
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Answer: (d).79.2 km/hr
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