Question
What is the time complexity for accessing an element at
a specific index in an array?Solution
Answer: c) O(1)
Ratio of the lengths of two trains ‘X’ and ‘Y’ is 6:7 respectively and the ratio of time taken by them to cross a pole is 2:3 respectively. If s...
A train crosses a pole and a platform of length 504 metres in 9 seconds and 21 seconds, respectively. Find the length of train.
A train running at 90 km/hr crosses a vertical pole in 5 seconds and a platform in 20 seconds. Determine the length of the platform.
Train X, traveling at a speed of 54 km/hr, crosses another train Y, which is moving in the opposite direction at a speed of 90 km/hr, in 't' seconds. If...
A train 300 metre long takes 45 sec to cross a man running at a speed of 6 km/hr in the direction opposite to that of train. What is the speed of the tr...
A Train Rajdhani Express leaves Kanpur station at 6 am and reaches Lucknow station at 10 am. Another Train Shatabdi Express leaves Lucknow station at 8 ...
- Train 'A' having a speed of 25 m/s can cross a man in 6 seconds. The length of train 'B' is 30 metres more than the length of 'A'. If the speed of 'B' is 3...
Train ‘A’ running with a speed of 108 km/hr crosses a vertical pole in 10 seconds. Find the approx. time taken by the train ‘A’ ...
Two trains, whose respective lengths are 120 metres and 180 metres, cross each other in 15 seconds when they are moving in opposite directions and in 5...
A train travels at an average speed of 100 km per hour without stoppage and with stoppages it covers the same distance at an average speed of 80 km/hr. ...
