In a depth-first traversal of a tree or graph, what data structure is typically used to keep track of nodes to be visited next?
Stack
The speed of a car is 30% more than that of a bike. Both of them start from a same point. After travelling for 4 hours, the speed of the bike is increas...
‘A’ and ‘B’ started moving towards each other at same time with a speed of 22 km/hr and 14 km/hr, respectively. If the di...
Two guns were fired from the same place at an interval of 20 minutes but a person in a train approaching the place hears the sound 16 minutes 30 seconds...
Train P starts from Lucknow to Dehradun at 11:55 am with an average speed of 27.5 m/s. Train Q starts from Dehradunto Lucknowat 1:35 pm with an average ...
Gaurav works at SBI Whitefield Office. On the first day to work, he drove at 40 km/h but was late to the bank by 18 minutes. The next day he drove at 50...
A boy goes to school at 8 km/Hr and return at a speed of 7 km/hr. If he takes 15 hrs in all. Find the distance from his village to school?
A bike completes a journey in 4hrs with a speed of 60 km/hr. At what speed must it travel to complete the journey in 6 hrs?
In a Drag race of 'm' metres, 'Amit' beats 'Binod' by 'a' metres and 'Binod' beats 'Chintu' by 'b' metres. By how much distance (in metres) will 'Amit' ...
Sheetal rides a bike at an average speed of 40 kmph and reaches her destination in 5 hours. Hemlata covers the same distance in 4 hrs. If Sheetal increa...
If a person walks 20% more than of his usual speed, reaches his distance 90 minutes before. If the destination is 459 km away, then the usual speed of a...
