Question
Which OOP principle binds data and the methods that
operate on that data within a single unit?Solution
Answer: D) Encapsulation
A car completes a journey in 6 hrs with a speed of 50 km/hr. At what speed must it travel to complete the journey in 5 hrs?
Find the distance travelled (in km) by the truck to reach point B from point A, if a car cover 50% the same distance in 2 hours 30 minutes and a truck c...
Vicky and Vikram start running simultaneously around a rectangular track of length 500m from the same point at speeds of 30 km/hr and 20 km/hr. When wil...
A train covers a distance of 77 km at the speed of 35 km/h the next 63 km distance covers with a speed of 42 km/h and last 24 km with the speed of 80 km...
- A train was moving at 60 km/hr for ‘x’ hours. It then increased its speed by 10 km/hr and travelled for (x + 4) hours. If it covered 910 km in the seco...
If a bicycle can cover 65 km in 10 hours while a car can cover 90 km in 5 hours then find the average speed of car.
A and B are travelling towards each other with a speed of 20 km/hr and 30 km/hr. If they started at same time and A covered 18 km less distance than B b...
Two trains approach each other at 25 kmph and 35 kmph from two places 240 km apart. After how many hours they will meet?
The downstream speed of a boat is 6 km/hr more than its upstream speed and the ratio of the speed of the boat in still water to the speed of the stream ...
- Ravi started jogging from point X at 12 m/s. 10 seconds later, Sunil began running from the same point in the same direction and managed to catch Ravi in 3...
