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A 250 meters long train crosses a bridge 750 meters long in 20 seconds and crosses a platform in 15 seconds. Find the length of the platform.
- a)350 m
- b)450 m
- c)500 m
- d)800 m
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
A 250 meters long train crosses a bridge 750 meters long in 20 seconds...
Given:
A 250 meters long train crosses a bridge 750 meters long in 20 seconds
And crosses a platform in 15 seconds.
Formula Used:
Distance = Speed × Time
Calculation:
Let the speed of the train be S
And let the length of the platform be x
According to the question,
250 + 750 = S × 20
⇒ S = 1000/20
⇒ 50 m/sec
Now, Again according to the question
The train crosses the platform in 15 seconds
250 + x = 50 × 15
⇒ x = 750 - 250
⇒ x = 500 m
∴ The length of the platform is 500 m.
A 250 meters long train crosses a bridge 750 meters long in 20 seconds
And crosses a platform in 15 seconds.
Formula Used:
Distance = Speed × Time
Calculation:
Let the speed of the train be S
And let the length of the platform be x
According to the question,
250 + 750 = S × 20
⇒ S = 1000/20
⇒ 50 m/sec
Now, Again according to the question
The train crosses the platform in 15 seconds
250 + x = 50 × 15
⇒ x = 750 - 250
⇒ x = 500 m
∴ The length of the platform is 500 m.
Most Upvoted Answer
A 250 meters long train crosses a bridge 750 meters long in 20 seconds...
Given:
A 250 meters long train crosses a bridge 750 meters long in 20 seconds
And crosses a platform in 15 seconds.
Formula Used:
Distance = Speed × Time
Calculation:
Let the speed of the train be S
And let the length of the platform be x
According to the question,
250 + 750 = S × 20
⇒ S = 1000/20
⇒ 50 m/sec
Now, Again according to the question
The train crosses the platform in 15 seconds
250 + x = 50 × 15
⇒ x = 750 - 250
⇒ x = 500 m
∴ The length of the platform is 500 m.
A 250 meters long train crosses a bridge 750 meters long in 20 seconds
And crosses a platform in 15 seconds.
Formula Used:
Distance = Speed × Time
Calculation:
Let the speed of the train be S
And let the length of the platform be x
According to the question,
250 + 750 = S × 20
⇒ S = 1000/20
⇒ 50 m/sec
Now, Again according to the question
The train crosses the platform in 15 seconds
250 + x = 50 × 15
⇒ x = 750 - 250
⇒ x = 500 m
∴ The length of the platform is 500 m.
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Community Answer
A 250 meters long train crosses a bridge 750 meters long in 20 seconds...
Given:
A 250 meters long train crosses a bridge 750 meters long in 20 seconds
And crosses a platform in 15 seconds.
Formula Used:
Distance = Speed × Time
Calculation:
Let the speed of the train be S
And let the length of the platform be x
According to the question,
250 + 750 = S × 20
⇒ S = 1000/20
⇒ 50 m/sec
Now, Again according to the question
The train crosses the platform in 15 seconds
250 + x = 50 × 15
⇒ x = 750 - 250
⇒ x = 500 m
∴ The length of the platform is 500 m.
A 250 meters long train crosses a bridge 750 meters long in 20 seconds
And crosses a platform in 15 seconds.
Formula Used:
Distance = Speed × Time
Calculation:
Let the speed of the train be S
And let the length of the platform be x
According to the question,
250 + 750 = S × 20
⇒ S = 1000/20
⇒ 50 m/sec
Now, Again according to the question
The train crosses the platform in 15 seconds
250 + x = 50 × 15
⇒ x = 750 - 250
⇒ x = 500 m
∴ The length of the platform is 500 m.
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A 250 meters long train crosses a bridge 750 meters long in 20 seconds and crosses a platform in 15 seconds. Find the length of the platform.a)350 mb)450 mc)500 md)800 mCorrect answer is option 'C'. Can you explain this answer?
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Solutions for A 250 meters long train crosses a bridge 750 meters long in 20 seconds and crosses a platform in 15 seconds. Find the length of the platform.a)350 mb)450 mc)500 md)800 mCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Airforce X Y / Indian Navy SSR.
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