Answer:
63 kilometers per hour for train A and 83 kilometers for train B
Explanation:
Same beginning
- Train A: 3 hours to North
- Train B: 2 hours and 15 minutes to South
but train B 20 kilometers per hour faster
15 minutes from 20 kilometers per hours are 5 kilometers
So, train B is 45 kilometers travel more far than train B.
= 360 kilometers - 45 kilometers
= 315 kilometers ÷ 5 hours
= 63 kilometers per hours
Hope it's right><