Start learning 50% faster. Sign in now
Get Started with ixamBee
Start learning 50% faster. Sign in nowLet the speed of the train be x m/sec and the length of the train be y m, then According to the question x = (240 + y) / 10 ----(1) x = y / 6 ----(2) From equation (1) and equation (2) y / 6 = (240 + y) / 10 2y = 1400 + 6y 10y - 6y = 1440 y = 1440/4 =360m The length of the train is 360 m From equation (2) x = 360/6 x = 60 m/sec x = 60 x 18/5 x = 216 km/hr The speed of a train is 216 km/hr.
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 ...
On river, Q is the mid-point between two points P and R on the same bank of the river. A boat can go from P to Q and back in 12 hours and from P to R in...
A boy goes to school at 7 km/Hr and return at a speed of 6 km/hr. If he takes 13 hrs in all. Find the distance from his village to school?
A man travels 450 km to his home partly by train and partly by car. He takes 8 hrs 40 minutes if he travels 240 km by train and rest by car. He takes 20...
Axar covered 1/4th of the total distance at a speed of 25 km/hr. Then, he covered (1/2) of the remaining distance at a speed of 30 km/hr, and the rest o...
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 ...
A person travelled a distance of 200 km in 7 hours. He travelled partly on a car at the speed of 50 kmph and partly on cycle at 20 kmph. What is the dis...
There was a race of 2480 meters between P & Q on a circular track of 620 meters. First time they meet during the race after 4 minutes of starting of rac...
'A' can do some work alone in 16 days. 'A'and 'B' work together for 8 days after which'A' leaves and 'B' finishes the remaining work alone in 12 days. H...