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How much time will a train 171 m long take to cross a bridge 229 m long, if it is running ^at a speed of 45 kmph?
- a)40 sec
- b)35 sec
- c)32 sec
- d)30 sec
Correct answer is option 'C'. Can you explain this answer?
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Verified Answer
How much time will a train 171 m long take to cross a bridge 229 m lo...
Speed = (45*5/18)m/sec = 25/2 m/sec.
Required time =(171+229)/(25/2) sec.
= (400*2/25)sec. =32 sec.
Most Upvoted Answer
How much time will a train 171 m long take to cross a bridge 229 m lo...
Given:
Length of train = 171 m
Length of bridge = 229 m
Speed of train = 45 kmph
To find:
Time taken by train to cross the bridge
Formula used:
Time taken = Distance / Speed
Calculation:
Total distance to be covered by train = length of train + length of bridge
= 171 m + 229 m
= 400 m
Speed of train = 45 kmph
= 45 × 5/18 m/s (Converting kmph to m/s)
= 25/2 m/s
Time taken by train to cross the bridge = distance / speed
= 400 / (25/2)
= 32 seconds
Therefore, the time taken by the train to cross the bridge is 32 seconds.
Hence, option (c) is the correct answer.
Length of train = 171 m
Length of bridge = 229 m
Speed of train = 45 kmph
To find:
Time taken by train to cross the bridge
Formula used:
Time taken = Distance / Speed
Calculation:
Total distance to be covered by train = length of train + length of bridge
= 171 m + 229 m
= 400 m
Speed of train = 45 kmph
= 45 × 5/18 m/s (Converting kmph to m/s)
= 25/2 m/s
Time taken by train to cross the bridge = distance / speed
= 400 / (25/2)
= 32 seconds
Therefore, the time taken by the train to cross the bridge is 32 seconds.
Hence, option (c) is the correct answer.
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How much time will a train 171 m long take to cross a bridge 229 m long, if it is running ^at a speed of 45 kmph?a) 40 secb) 35 secc) 32 secd) 30 secCorrect answer is option 'C'. Can you explain this answer?
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How much time will a train 171 m long take to cross a bridge 229 m long, if it is running ^at a speed of 45 kmph?a) 40 secb) 35 secc) 32 secd) 30 secCorrect answer is option 'C'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about How much time will a train 171 m long take to cross a bridge 229 m long, if it is running ^at a speed of 45 kmph?a) 40 secb) 35 secc) 32 secd) 30 secCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for How much time will a train 171 m long take to cross a bridge 229 m long, if it is running ^at a speed of 45 kmph?a) 40 secb) 35 secc) 32 secd) 30 secCorrect answer is option 'C'. Can you explain this answer?.
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