Question : A train travelling at 36 km/h crosses a pole in 25 seconds. How much time (in seconds) will it take to cross a bridge 350 m long?
Option 1: 72
Option 2: 48
Option 3: 60
Option 4: 56
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Correct Answer: 60
Solution : Speed of train = $36 × \frac{5}{18}$ = 10 m/s Time taken = 25 seconds Length of train = 25 × 10 = 250 m Length of bridge = 350 m Total length = length of tran + length of bridge Total length = 250 + 350 = 600 m Time taken to cross the bridge = $\frac{600}{10}=60$ Hence, the correct answer is 60 seconds.
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Question : If a train is 60 metres long and travelling at 36 km/hr, how long will it take to pass by a telegraph post?
Option 1: 9 seconds
Option 2: 8 seconds
Option 3: 7 seconds
Option 4: 6 seconds
Question : At what time will a 100 metres long train running at a speed of 50 km/h cross a pillar?
Option 1: 7 seconds
Option 2: 72 seconds
Option 3: 7.2 seconds
Option 4: 70 seconds
Question : A train, 200 metres long, is running at a speed of 54 km/h. The time in seconds that will be taken by the train to cross a 175 metres long bridge is:
Option 1: 12.5
Option 2: 20
Option 3: 25
Option 4: 10
Question : A goods train 350 m long passes through a tunnel of length 1250 m in 80 seconds. What is the speed of the train?
Option 1: 64 km/hr
Option 2: 56 km/hr
Option 3: 78 km/hr
Option 4: 72 km/hr
Question : The length of a train is 330 metres and it is moving at the speed of 72 km/hr. In how much time will it take to cross a platform of length 710 metres?
Option 1: 52 seconds
Option 2: 56 seconds
Option 3: 72 seconds
Option 4: 64 seconds
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