A train crosses two platforms of length 1000 m and 600 m in 80 seconds and 60 seconds, respectively. What is the length of the train?
Let the length of the train be x m. As we know, Speed = (x + 1000)/80 ---(1) Speed = (x + 600)/60 ---(2) From equation (1) and equation (2) (x + 1000)/80 = (x + 600)/60 3 (x + 1000) = 4 (x + 600) 3x + 3000 = 4x + 2400 4x-3x = 3000-2400 x = 600 The length of the train is 600 m.
A man travelled a total distance of 300 km. He travelled first 200 km on car with a speed of 40 km/h and rest of the distance on bike whose speed is 20 ...
If a car runs at 36 km/hr, it reaches its destination late by 15 minutes but if runs at 45 km/hr it is late by 9 minutes. What is the correct time for t...
B and C are standing on point Q and P respectively, which are 300km apart. A starts moving to and from between Q and P at 25km/hr while A starts moving ...
Amit covered 360 kilometers in total trip time. He covered the remaining 200 km on a bicycle at a speed that was 5 km/h slower than that of the bus afte...
A train takes 46 seconds to cross the 214 m long bridge. If the same train takes 23 seconds to cross a signal board, tell the length of the train. (In m...
A policeman saw a thief from a distance of 450 m. When the policeman started chasing him, the thief also started running. The ratio of speeds of the th...
A cheetah can catch a deer running with a speed of 36 km/h and is 45 meters ahead of it, in 12 seconds. Find the time taken by the cheetah to catch a ze...
A and B are travelling towards each other with a speed of 30 km/hr and 40 km/hr. If they started at same time and A covered 20 km less distance than B b...
The speed of ‘A’ and ‘B’ is 65 km/hr and 40 km/hr, respectively. If the distance covered by ‘A’ in ‘x&r...
A motor-cycle covers 160 km with a speed of 70 km/hr. find the speed of the motor-cycle for the next 170 km journey so that the average speed of the who...
