A train takes 61 seconds to cross a 408 m long bridge. If the same train takes 27 seconds to cross a signboard, find the length of the train.
324 m
Let the length of the train be L m; to cross the signboard it covers L m, and to cross the bridge it covers (L + 408) m.
Since the speed is the same, L/27 = (L + 408)/61.
So 61L = 27L + 27 × 408, i.e. 34L = 11016.
Therefore L = 11016 ÷ 34 = 324 m.
Hence, 324 m.
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Important Questions from Problem on Trains
Eight railway stations A, B, C, D, E, F, G and H are connected either by two-way passages or one-way passages. One-way passages are from C to A, E to G, B to F, D to H, G to C, E to C and H to G. Two-way passages are between A and E, G and B, F and D, and E and D.
If the route between G and C is closed, which one of the following stations need not be passed through while travelling from H to C?
A daily train is to be introduced between station A and station B starting from each end at 6 AM and the journey is to be completed in 42 hours. What is the number of trains needed in order to maintain the Shuttle Service?
The length of a train and that of a platform are equal. If with a speed of 108 km/hr the train crosses the platform in one minute. Then the length of the train (in metres) is:
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A 275 metre long train crosses a platform of equal length in 33 seconds. What is the speed of the train in kmph?
