SOLUTION: Car A left Melbourne for Adelaide at 11.00 a.m. and travelled at an average speed of 70 km per hour.
Car B left Melbourne for Adelaide at 1.00 p.m. on the same day and travelled a
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Question 888863: Car A left Melbourne for Adelaide at 11.00 a.m. and travelled at an average speed of 70 km per hour.
Car B left Melbourne for Adelaide at 1.00 p.m. on the same day and travelled at an average speed of 90 km per hour. At what time will car B catch up to car A?
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
Car A had a head start of 2 hours at 70 km/h or 140 km
car B gained on car A at 20 kph
140/20=7 car B will catch car A after 7 hrs
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