can help with this question ,thank you!
Omar and Mike were racing on a cross country motor race at an average speed of 140km/h and 120km/h respectively. At 8am, Omar was 45km ahead of Mike. 45 mins later, Omar’s car broke down and he discontinued the race.
(a) How far was Omar ahead of Mike when Omar’s car broke down?
(b) At what time did Mike pass the point where Omar’s car broke down?