Let the speed one train be x m/s and the speed of the second train be y m/s. Length of the first train = Speed × Time = 30x Length of second train = Speed × Time = 20y So, {(30x + 20y)/(x+y)} = 24 ⇒  30x + 20y = 24x + 24y ⇒ 6x = 4y Therefore, x:y = 2:3
X started to run from point ‘A’ to ‘B’ at a speed of 35 km/hr at 9:00 am and Y started to run from point ‘B’ to ‘A’ at a speed of 11 km/...
Buses A and B are moving around a circular ground of radius 280 m. If the speeds of the buses A and B are 15 m/sec and 24 m/sec respectively, then what ...
A 160 m long train overtakes another 140 m long train in 12 sec. If the speed of the slower train is 54 kmph, what is the speed of the faster train?
The distance between two points 'P' and 'Q' is 2,400 km. Karan and Mohit can cover the distance between 'P' and 'Q' in 40 hours and 32 hours, respective...
Parag starts chasing a Vipul, 4 hours after the Vipul starts running. Parag takes 5 hours to catch the Vipul. If the average speed of the Parag is 45 km...
Ajay and Vishal left the place ‘X’ with different speeds which are in the ratio 3:2 respectively. Ajay left the place 42 seconds after Vishal. If af...
The average speed of a bus is half the speed of a train. The train covers 5200 km in 13 hours. How much distance will the bus cover in 36 minutes?
If a person walks 40% more than of his usual speed, reaches his distance 90 minutes before. If the destination is 441 km away, then the usual speed of a...
‘A’ and ‘B’ started moving towards each other at same time with a speed of 25 km/hr and 15 km/hr, respectively. If the distance covered by ‘Aâ...
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...
