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A train 150m long running at 72 kmph crosses a platform in 25 sec. What is the length of the platform?
Correct answer is '350'. Can you explain this answer?
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A train 150m long running at 72 kmph crosses a platform in 25 sec. Wh...
Given data:
- Length of the train = 150m
- Speed of the train = 72 kmph
- Time taken to cross the platform = 25 sec
To find:
- Length of the platform
Approach:
To find the length of the platform, we need to determine the distance covered by the train during the time it takes to cross the platform. We can then subtract the length of the train from this distance to obtain the length of the platform.
Step-by-step solution:
Step 1: Convert the speed of the train from kmph to m/s.
- Speed of the train = 72 kmph
- Conversion factor: 1 kmph = 5/18 m/s
- Speed of the train = (72 * 5/18) m/s = 20 m/s
Step 2: Determine the distance covered by the train during the time it takes to cross the platform.
- Distance = Speed * Time
- Distance = 20 m/s * 25 sec = 500 m
Step 3: Subtract the length of the train from the distance covered to obtain the length of the platform.
- Length of the platform = Distance - Length of the train
- Length of the platform = 500 m - 150 m = 350 m
Final answer:
The length of the platform is 350 meters.
- Length of the train = 150m
- Speed of the train = 72 kmph
- Time taken to cross the platform = 25 sec
To find:
- Length of the platform
Approach:
To find the length of the platform, we need to determine the distance covered by the train during the time it takes to cross the platform. We can then subtract the length of the train from this distance to obtain the length of the platform.
Step-by-step solution:
Step 1: Convert the speed of the train from kmph to m/s.
- Speed of the train = 72 kmph
- Conversion factor: 1 kmph = 5/18 m/s
- Speed of the train = (72 * 5/18) m/s = 20 m/s
Step 2: Determine the distance covered by the train during the time it takes to cross the platform.
- Distance = Speed * Time
- Distance = 20 m/s * 25 sec = 500 m
Step 3: Subtract the length of the train from the distance covered to obtain the length of the platform.
- Length of the platform = Distance - Length of the train
- Length of the platform = 500 m - 150 m = 350 m
Final answer:
The length of the platform is 350 meters.
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Community Answer
A train 150m long running at 72 kmph crosses a platform in 25 sec. Wh...
D = 72 × 5/18 = 25 = 500 - 150 = 350
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A train 150m long running at 72 kmph crosses a platform in 25 sec. What is the length of the platform?Correct answer is '350'. Can you explain this answer?
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A train 150m long running at 72 kmph crosses a platform in 25 sec. What is the length of the platform?Correct answer is '350'. Can you explain this answer? for CAT 2024 is part of CAT preparation. The Question and answers have been prepared according to the CAT exam syllabus. Information about A train 150m long running at 72 kmph crosses a platform in 25 sec. What is the length of the platform?Correct answer is '350'. Can you explain this answer? covers all topics & solutions for CAT 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A train 150m long running at 72 kmph crosses a platform in 25 sec. What is the length of the platform?Correct answer is '350'. Can you explain this answer?.
A train 150m long running at 72 kmph crosses a platform in 25 sec. What is the length of the platform?Correct answer is '350'. Can you explain this answer? for CAT 2024 is part of CAT preparation. The Question and answers have been prepared according to the CAT exam syllabus. Information about A train 150m long running at 72 kmph crosses a platform in 25 sec. What is the length of the platform?Correct answer is '350'. Can you explain this answer? covers all topics & solutions for CAT 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A train 150m long running at 72 kmph crosses a platform in 25 sec. What is the length of the platform?Correct answer is '350'. Can you explain this answer?.
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