Class 7 Exam > Class 7 Questions > The speed of a train 200 m long is 50 km per ...
Start Learning for Free
The speed of a train 200 m long is 50 km per hour. How much time will it take to pass a platform 550m long?
- a)51 sec
- b)52 sec
- c)53 sec
- d)54 sec
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
The speed of a train 200 m long is 50 km per hour. How much time will ...
To find the time it takes for the train to pass the platform, we need to consider the length of the train and the platform, as well as the speed of the train.
Given:
Length of the train = 200 m
Speed of the train = 50 km/h
Length of the platform = 550 m
First, let's convert the speed of the train from km/h to m/s:
1 km/h = (1000 m / 3600 s) = 5/18 m/s
So the speed of the train in m/s is:
50 km/h * (5/18) m/s = 250/18 m/s
The train needs to cover a distance equal to its own length and the length of the platform to pass it completely.
Total distance to be covered by the train = Length of the train + Length of the platform
= 200 m + 550 m
= 750 m
To find the time taken by the train to cover this distance, we use the formula:
Time = Distance / Speed
Substituting the values:
Time = 750 m / (250/18) m/s
= 750 m * (18/250) s
= 54 s
Hence, it will take 54 seconds for the train to pass the platform.
Therefore, the correct answer is option 'D' - 54 sec.
Given:
Length of the train = 200 m
Speed of the train = 50 km/h
Length of the platform = 550 m
First, let's convert the speed of the train from km/h to m/s:
1 km/h = (1000 m / 3600 s) = 5/18 m/s
So the speed of the train in m/s is:
50 km/h * (5/18) m/s = 250/18 m/s
The train needs to cover a distance equal to its own length and the length of the platform to pass it completely.
Total distance to be covered by the train = Length of the train + Length of the platform
= 200 m + 550 m
= 750 m
To find the time taken by the train to cover this distance, we use the formula:
Time = Distance / Speed
Substituting the values:
Time = 750 m / (250/18) m/s
= 750 m * (18/250) s
= 54 s
Hence, it will take 54 seconds for the train to pass the platform.
Therefore, the correct answer is option 'D' - 54 sec.
|
Explore Courses for Class 7 exam
|
|
Similar Class 7 Doubts
Top Courses for Class 7View all
The speed of a train 200 m long is 50 km per hour. How much time will it take to pass a platform 550m long?a)51 secb)52 secc)53 secd)54 secCorrect answer is option 'D'. Can you explain this answer?
Question Description
The speed of a train 200 m long is 50 km per hour. How much time will it take to pass a platform 550m long?a)51 secb)52 secc)53 secd)54 secCorrect answer is option 'D'. Can you explain this answer? for Class 7 2025 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about The speed of a train 200 m long is 50 km per hour. How much time will it take to pass a platform 550m long?a)51 secb)52 secc)53 secd)54 secCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 7 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The speed of a train 200 m long is 50 km per hour. How much time will it take to pass a platform 550m long?a)51 secb)52 secc)53 secd)54 secCorrect answer is option 'D'. Can you explain this answer?.
The speed of a train 200 m long is 50 km per hour. How much time will it take to pass a platform 550m long?a)51 secb)52 secc)53 secd)54 secCorrect answer is option 'D'. Can you explain this answer? for Class 7 2025 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about The speed of a train 200 m long is 50 km per hour. How much time will it take to pass a platform 550m long?a)51 secb)52 secc)53 secd)54 secCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 7 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The speed of a train 200 m long is 50 km per hour. How much time will it take to pass a platform 550m long?a)51 secb)52 secc)53 secd)54 secCorrect answer is option 'D'. Can you explain this answer?.
Solutions for The speed of a train 200 m long is 50 km per hour. How much time will it take to pass a platform 550m long?a)51 secb)52 secc)53 secd)54 secCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 7.
Download more important topics, notes, lectures and mock test series for Class 7 Exam by signing up for free.
Here you can find the meaning of The speed of a train 200 m long is 50 km per hour. How much time will it take to pass a platform 550m long?a)51 secb)52 secc)53 secd)54 secCorrect answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
The speed of a train 200 m long is 50 km per hour. How much time will it take to pass a platform 550m long?a)51 secb)52 secc)53 secd)54 secCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for The speed of a train 200 m long is 50 km per hour. How much time will it take to pass a platform 550m long?a)51 secb)52 secc)53 secd)54 secCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of The speed of a train 200 m long is 50 km per hour. How much time will it take to pass a platform 550m long?a)51 secb)52 secc)53 secd)54 secCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice The speed of a train 200 m long is 50 km per hour. How much time will it take to pass a platform 550m long?a)51 secb)52 secc)53 secd)54 secCorrect answer is option 'D'. Can you explain this answer? tests, examples and also practice Class 7 tests.
|
|
Explore Courses for Class 7 exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup