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Two trains of lengths 150 m and 180 m respectively are running in opposite directions on parallel tracks. If their speed is 50 km/hour and 58 km/hour respectively. In how much time will they cross each other?
- a)11 seconds
- b)15 seconds
- c)22 seconds
- d)9 seconds
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
Two trains of lengths 150 m and 180 m respectively are running in opp...
Standard Formula: Suppose A and B are two objects with lengths L1 and L2 respectively, and their speeds are S1 and S2 respectively and moving in opposite direction, then
- Crossing Time(Ct) = Length of the objects/ Relative speed of the object(s)
Thus, Ct= (L1+L2)/(S1 +S2)
By looking at the above problem, we can say that,
- L1 = 150 m,
- L2 = 180 m,
- S1 = 50 km/hr
- S2 = 58 km/hr
Relative speed= (S1+S2)= 108 km/hr or (108 * 5/18) m/s = 30 m/s.
Therefore, crossing time Ct= (L1+L2)/ Relative speed
Ct= (150 m+180 m)/ 30 m/s
Ct= 330 m / 30 m/s = 11 seconds
Most Upvoted Answer
Two trains of lengths 150 m and 180 m respectively are running in opp...
Given information:
- Length of first train = 150 m
- Length of second train = 180 m
- Speed of first train = 50 km/hour
- Speed of second train = 58 km/hour
To find:
- Time taken by the trains to cross each other.
Approach:
- When two trains are moving in opposite directions, the effective length of the two trains is equal to their sum.
- The relative speed of the two trains is equal to the sum of their speeds.
- Using these two facts, we can calculate the time taken by the two trains to cross each other.
Calculation:
- Effective length of the two trains = 150 m + 180 m = 330 m
- Relative speed of the two trains = 50 km/hour + 58 km/hour = 108 km/hour = 30 m/s (by converting km/hour to m/s)
- Time taken by the two trains to cross each other = Effective length of the two trains / Relative speed of the two trains
= 330 m / 30 m/s
= 11 seconds
Therefore, the correct answer is option (a) 11 seconds.
- Length of first train = 150 m
- Length of second train = 180 m
- Speed of first train = 50 km/hour
- Speed of second train = 58 km/hour
To find:
- Time taken by the trains to cross each other.
Approach:
- When two trains are moving in opposite directions, the effective length of the two trains is equal to their sum.
- The relative speed of the two trains is equal to the sum of their speeds.
- Using these two facts, we can calculate the time taken by the two trains to cross each other.
Calculation:
- Effective length of the two trains = 150 m + 180 m = 330 m
- Relative speed of the two trains = 50 km/hour + 58 km/hour = 108 km/hour = 30 m/s (by converting km/hour to m/s)
- Time taken by the two trains to cross each other = Effective length of the two trains / Relative speed of the two trains
= 330 m / 30 m/s
= 11 seconds
Therefore, the correct answer is option (a) 11 seconds.
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Two trains of lengths 150 m and 180 m respectively are running in opposite directions on parallel tracks. If their speed is 50 km/hour and 58 km/hour respectively. In how much time will they cross each other?a) 11 secondsb) 15 secondsc) 22 secondsd) 9 secondsCorrect answer is option 'A'. Can you explain this answer?
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Two trains of lengths 150 m and 180 m respectively are running in opposite directions on parallel tracks. If their speed is 50 km/hour and 58 km/hour respectively. In how much time will they cross each other?a) 11 secondsb) 15 secondsc) 22 secondsd) 9 secondsCorrect answer is option 'A'. 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 Two trains of lengths 150 m and 180 m respectively are running in opposite directions on parallel tracks. If their speed is 50 km/hour and 58 km/hour respectively. In how much time will they cross each other?a) 11 secondsb) 15 secondsc) 22 secondsd) 9 secondsCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Two trains of lengths 150 m and 180 m respectively are running in opposite directions on parallel tracks. If their speed is 50 km/hour and 58 km/hour respectively. In how much time will they cross each other?a) 11 secondsb) 15 secondsc) 22 secondsd) 9 secondsCorrect answer is option 'A'. Can you explain this answer?.
Two trains of lengths 150 m and 180 m respectively are running in opposite directions on parallel tracks. If their speed is 50 km/hour and 58 km/hour respectively. In how much time will they cross each other?a) 11 secondsb) 15 secondsc) 22 secondsd) 9 secondsCorrect answer is option 'A'. 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 Two trains of lengths 150 m and 180 m respectively are running in opposite directions on parallel tracks. If their speed is 50 km/hour and 58 km/hour respectively. In how much time will they cross each other?a) 11 secondsb) 15 secondsc) 22 secondsd) 9 secondsCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Two trains of lengths 150 m and 180 m respectively are running in opposite directions on parallel tracks. If their speed is 50 km/hour and 58 km/hour respectively. In how much time will they cross each other?a) 11 secondsb) 15 secondsc) 22 secondsd) 9 secondsCorrect answer is option 'A'. Can you explain this answer?.
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Two trains of lengths 150 m and 180 m respectively are running in opposite directions on parallel tracks. If their speed is 50 km/hour and 58 km/hour respectively. In how much time will they cross each other?a) 11 secondsb) 15 secondsc) 22 secondsd) 9 secondsCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for Two trains of lengths 150 m and 180 m respectively are running in opposite directions on parallel tracks. If their speed is 50 km/hour and 58 km/hour respectively. In how much time will they cross each other?a) 11 secondsb) 15 secondsc) 22 secondsd) 9 secondsCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of Two trains of lengths 150 m and 180 m respectively are running in opposite directions on parallel tracks. If their speed is 50 km/hour and 58 km/hour respectively. In how much time will they cross each other?a) 11 secondsb) 15 secondsc) 22 secondsd) 9 secondsCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
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