Question

1. The ratio between the speeds of two trains is 7:10. If the second train runs 400 kms in 4 hours then the
speed of first train is (in km/hr)​

Answer 1

Answer:

distance=400km

time=4hrs

speed=400/4=

100km/hr

let the speed of the first train be x km/hr

B. T. P

x/100=7/10

x=70

Ans= 70km/hr