Question
A train overtakes two persons walking along a railway
track. The first one walks at 3.2 Km/h. The other one walks at 4.5 Km/h. The train needs 5.5 and 5.6 second respectively to overtake them. What is the speed of the train if both the persons are walking in the same direction as the train?Solution
A can complete a work in 15 days, and B can complete the same work in 20 days. If they work together for 6 days, what fraction of the work is left?
- Nikita covered a total distance of 400 km — partly by airplane at 200 km/h and partly by bus at 80 km/h. If she took 3.5 hours to reach, how many kilomet...
A boy goes to tuition at (5/7) of his normal walking speed and reaches 24 minutes late. Find his usual time to reach the tuition centre.
The speed ratio of Y : Z is 3 : 2. After increasing his speed by 50%, Y covers 270 km in 3 hours. How much time will Z take to cover 200 km?
A person needs to travel 300 km. If he covered the first 30% of the distance at a speed of 60 kmph, then 3/5th of the distance at a speed of 50 kmph, an...
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...
A train travels from Station A to Station B at a speed of 60 km/h and returns from Station B to Station A at a speed of 40 km/h. If the distance between...
A bike travels 96 km in 72 minutes. If the speed is reduced by 12 km/h, find the time taken to cover the same distance.
A boat can travel 30 km downstream in 45 min. The ratio of the speed of the boat in still water to the speed of the stream is 5: 3. How much time will t...
The speed of two cars A and B are in the ratio of 9:12 respectively. Car A travels 15 km less than the car B in the same time duration. What was the dis...