Question

The speed of two trains are in the ratio of 3:5 if the speed of the ist train is 15 km/ hr then what is the speed of the second train

Answer 1

Answer:

speed of the second train is 25 km/hr

explain

let the speed of 1st train is 3x

speed of second train be 5x

if speed of 1st is 15km/hr

then, 3x=15km/hr

x=15km/3=5km/hr

so speed of 2nd train will be

5x=5x5km=25km/hr

Answer 2

Speed of first train = 15/3 = 5km/h
Speed of second train = 5 * 5 = 25