Đáp án:
11:15
Giải thích các bước giải:
When the car started from A, the motocyclist had gone for 7:15 - 5:15 = 2 hours.
The distance between two vehicles when the car started is 30.2 = 60 km
Each hour, the car shorten 45 - 30 = 15 km between the motor and the car.
So, it takes 60 / 15 = 4 hrs for the car to catch up with the motor.
It would be 7:15 + 4 = 11:15