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Two trains 132 m and 108 m long are running in opposite directions with speeds of 32 km/h and 40 km/h respectively. How long will it take them to cross each other after meeting?
  • a)
    12 seconds
  • b)
    20 seconds
  • c)
    15 seconds
  • d)
    32 seconds
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Two trains 132 m and 108 m long are running in opposite directions wit...
Given:
Speed of train1 = 32 km/h
Speed of train2 = 40 km/h
Length of train1 = 132 m
Length of train2 = 108 m
Formula used:
If bodies moving in opposite direction = (x + y) km/h
If bodies moving in same direction = (x – y) km/h
Speed = Distance/Time
1 km/h = (5/18) m/sec
Calculation:
The sum of the length of the train = (132 + 108) m
⇒ 240m
According to the question
Relative speed = (32 + 40) km/h
⇒ 72 km/h
⇒ (72 × 5/18) m/sec = 20 m/sec
Now,
Time taken = Total distance/Speed
⇒ (240/20) sec
⇒ 12 sec
∴ Required time is 12 sec
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Two trains 132 m and 108 m long are running in opposite directions with speeds of 32 km/h and 40 km/h respectively. How long will it take them to cross each other after meeting?a)12 secondsb)20 secondsc)15 secondsd)32 secondsCorrect answer is option 'A'. Can you explain this answer?
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Two trains 132 m and 108 m long are running in opposite directions with speeds of 32 km/h and 40 km/h respectively. How long will it take them to cross each other after meeting?a)12 secondsb)20 secondsc)15 secondsd)32 secondsCorrect answer is option 'A'. Can you explain this answer? for Software Development 2025 is part of Software Development preparation. The Question and answers have been prepared according to the Software Development exam syllabus. Information about Two trains 132 m and 108 m long are running in opposite directions with speeds of 32 km/h and 40 km/h respectively. How long will it take them to cross each other after meeting?a)12 secondsb)20 secondsc)15 secondsd)32 secondsCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Software Development 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Two trains 132 m and 108 m long are running in opposite directions with speeds of 32 km/h and 40 km/h respectively. How long will it take them to cross each other after meeting?a)12 secondsb)20 secondsc)15 secondsd)32 secondsCorrect answer is option 'A'. Can you explain this answer?.
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