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The term "biological control" was first used by Harry Scott Smith at the 1919.
Train P measures 120 meters in length and moves at a speed of 5 meters per second, while Train Q is 90 meters long and travels at a speed of 10 meters p...
A 160 m long train crosses another 290 m long train running in the opposite direction in 10 seconds. If the shorter train crosses a pole in 8 seconds, w...
Train 'Express Star' is moving at a speed of 90 km/hr, traveling towards train 'Speedy Voyager,' which is twice as long as 'Express Star' and has the sa...
Two trains travelling in the same direction at 80 and 44 km/ph completely pass off another in 1 minute. If the length of the first train is 375 m, what ...
When a train Q vacated station A at 4 am and reached station B at 7 am. Another train P Vacated station B at 6 am and reached station A at 8:30 am. At a...
Train ‘A’ can cross a pole in 6 seconds and a 120 metre long platform in 12 seconds. If the ratio of length of train ‘A’ and train ‘B’ is 2:...
How many seconds will a train 68 m in length, travelling at the rate of 40 km an hour, take to pass another train 92 m long, proceeding in the same dire...
Length of a train, whose speed is 108 km/h, is 540 metres. Find the time taken (in seconds) by train to cross a bridge of length 360 metres.
Two trains approach each other at 22 kmph and 26 kmph from 2 places 240 km apart. After how many hours they will meet?