Question
Find the angle between the lines whose direction ratios
are a, b, c and b − c, c − a, a − b.Solution
Length of a train, whose speed is 36 km/h, is 180 metres. Find the time taken (in seconds) by train to cross a bridge of length 120 metres.
A 500-metre long train takes 10 seconds to cross a pole. If it takes 35 seconds to cross a bridge, then find the length of the bridge.(in km)
A goods train leaves a station at a certain time and at a fixed speed. After 12 hours, an express train leaves the same station and moves in the same di...
Two trains, each 100 meters long, are running in opposite directions. If one train's speed is twice that of the other and they take 10 seconds to cross ...
Train B can cross a ‘d’ meter long platform in 16 seconds. The speed of train B is 40% less than the speed of train A. Train A can cross a pole in 8...
A 130 m long train crosses another 250 m long train running in the opposite direction in 10 seconds. If the shorter train crosses a pole in 10 seconds, ...
A train 460 metres long is running at a speed of 54 km/hr. If it crosses a tunnel in 1 minute, then the length of the tunnel (in meters) is:
A train can cross a pole in 30 seconds. While if the train increased its speed by 55% then time taken by it to cross 351 metres long platform is 42 seco...
Two trains start from station A and B travel towards each other at speed of 50 kmph and 60 kmph respectively. At the time of their meeting, the second t...
Train A, at 90 km/h, crosses a pole in 8 seconds. Find the time to cross a train which is 25% shorter than Train A, coming from the opposite direction a...
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