The train speed on the main line has increased from an average of 160 km / h to an average of 200 km / h. what is the speed of the train after the speed increase?

The train speed on the main line has increased from an average of 160 km / h to an average of 200 km / h. what is the speed of the train after the speed increase?

200/160=5/4

The speed of the bus is 55 kilometers per hour, which is equivalent to 11 / 40 of the speed of the train after the speed increase. How many kilometers per hour is the speed of the train after the speed increase?

After the speed increase, the speed of the train is 55 / 11 / 40 = 200 km / h

The speed of the bus is 55 km / h, which is 29 / 40 slower than that of the train after the speed increase. What's the speed of the train after the speed increase

55÷(1-29/40)
=55÷11/40
=200 km / h

The speed of the bus is 55 kilometers per hour, which is equivalent to 11 / 40 of the speed of the train after the speed increase. How many kilometers per hour is the speed of the train after the speed increase?

55/（11/40）=200km