
Can you please help with this problem ?
Can you please help with this problem ?
Given that the speed of Terry is twice that of Jim, and that they started at the same time, this means that Terry would have travelled 2 units of distance while Jim would have travelled only 1 unit of distance when they met 2 hours later (12 pm – 2 pm)
Since the total distance between A and B is 45 km, this means that Terry travelled 30 km while Jim only travelled 15 km.
Jim’s speed → 15 km ÷ 2 hrs
= 7.5 km/h
Thank you all for the explanation
Terry + Jim
d=45km
t=2h
s=45/2=22.5km/h
3u = 22.5km/h
Jim, 1u = 22.5/3=7.5km/h