IGCSE Mathematics 0580/42 Paper 4 (Extended) Car A and car B take part in a race around a circular track.
One lap of the track measures 7.6km.
Car A takes 2 minutes and 40 seconds to complete each lap of the track.
Car B takes 2 minutes and 25 seconds to complete each lap of the track.
Both cars travel at a constant speed.
Both cars start the race from the same position, S, at the same time.
Find the time taken when both car A and car B are next at position S at the same time. Give your answer in minutes and seconds.