Question
Which of the following is not an example of simplex
communication?Solution
Simplex communication refers to one-way communication only, whereas walkie-talkies allow for two-way communication, which makes them a duplex communication device.
Two trains of same length are running in parallel tracks in the same direction with speed 90 km/hr and 120 km/hr respectively. The latter completely cro...
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750 metres long train crosses a man who is moving in the same direction with a certain speed, in 50 seconds. If the same train can cross a tree in 20 se...
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Train B which is ‘d’ meter long can cross a pole in 35 seconds. Train A can cross a platform of (d+10) meter long in (t+45) seconds. The ratio betwe...
Train 'A' having a speed of 20 m/s can cross a man in 6 seconds. The length of train 'B' is 40 metres more than the length of 'A'. If the speed of 'B' i...
A train, which is moving at the rate of 60 miles per hour, is brought to rest in 3 minutes with a uniform retardation, find this retardation, and also t...
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