A train running at a speed of 108 km/hr crosses a bridge 160 m long in 22 seconds. find the length of the train.
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Solution
Speed = = 30 m/s
Time = 22 s
Length + 160 = 30 × 22 = 660 meter
Length = 660 – 160 = 500 meter
A train running at 54 km/hr, the tunnel length 2 times longer as train length, train cross tunnel in 20 sec, what is the length of train?
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Solution
Speed of train = = 15 meter per second
Let the length of train = x meter
Total distance traveled = x + 2x = 3x meter
So, 15 =
x = 100 meter
A 300 metre long train crosses a platform in 39 seconds while it crosses a signal pole in 18 seconds. What is the length of the platform?
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Solution
Speed = m /sec = m/sec.
Let the length of the platform be x meters.
Then, ⇒ 3(x + 300) = 1950 ⇒ x = 350 m.
A train passes a station platform in 36 seconds and a man standing on the platform in 20 seconds. If the speed of the train is 54 km/hr, what is the length of the platform?
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Solution
Speed = m/sec = 15 m /sec.
Length of the train = (15×20) m = 300 m.
Let the length of the platform be x meters
Then, = 15 ⇒ x + 300 = 540 ⇒ x = 240 m.
A train crosses a platform 100 m long in 60 seconds at a speed of 45 km/hr. Time taken by train to cross an electric pole is:
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Solution
Speed = m/sec = m/sec.
Let the length of the train be x meters.
Then, = 60 or x = 650 m
∴ Time taken by the train to cross an electric pole = sec. = 52 sec.
A train of length 150 meters takes 40.5 seconds to cross a tunnel of length 300 meter. what is the speed of the train?
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Solution
Speed = m/sec.
= km/hr
= 40 km/hr.
A goods train runs at the speed of 72 kmph and crosses a 250 m long platform in 26 seconds. What is the length of the goods train?
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Solution
Speed = m/sec = 20 m/sec; Time = 26 sec.
Let the length of the train be x meters.
Then, = 20 ⇒ x + 250 = 520 ⇒ x = 270.
A train covers a distance of 12 km in 10 minutes. If it takes 6 seconds to pass a telegraph post, then the length of the train is:
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Solution
Speed = km/hr = m/sec = 20 m/sec.
Length of the train = (speed × Time) = (20×6) m = 120 m.
A train running at the speed of 60 km/hr crosses a pole in 9 seconds. What is the length of the train?
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Solution
Speed = m/sec = m/sec.
Length of the train = (speed × time) = m = 150 m.
How long does a train 110 metres long running at the speed of 72 km/hr take to cross a bridge 132 metres in length?
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Solution
Speed = m/sec = 20 m/sec
Total distance covered = (110 + 132) m = 242 m.
∴ Required time = sec = 12.1 sec.