Question
Which of the following software program masquerade as
regular programs, such as games, disk utilities, and even antivirus programs, but if they are run, these programs can damage users computer without replicating themselves?Solution
The correct answer is A
A train 180 m long crosses a 270 m platform in 27 seconds. Find the speed in km/h.
If the length of a train were halved, it would take 8 seconds to pass a pole. Given that the train's speed is 25 m/sec, determine the time required for ...
A train 120 m long passes a pole in 10 seconds. Find its speed in km/h.
Two trains approach each other at 22 kmph and 25 kmph from 2 places 282 km apart. After how many hours they will meet?
- Two trains ‘D’ and ‘E’ of lengths 660 metres and 440 metres respectively are travelling towards each other. Ratio of speed of ‘D’ to ‘E’ is...
A person travels a distance of 60 km, some distance he travels by bus and rest of the journey by walking, then he takes 4 hours and 20 minutes. If he ha...
Two trains of same length are running in parallel tracks in the same direction with speed 50 km/hr and 80 km/hr respectively. The latter completely cros...
- Two cyclists ‘X’ and ‘Y’ start from towns ‘M’ and ‘N’ respectively towards each other at the same time. When they meet after 6 hours, cycli...
Train ‘A’ running with a speed of 19.8 km/hr can cross a standing goods train of 4 times its length in 40 seconds. Find the time taken by 250 metres...
A train of length 300 metres crosses a man standing on platform in 15 seconds. If its speed decreases by 20%, then find the time taken by train to cros...
