4. (4 points) Oleg usually arrives on a business trip by the 11 o'clock train. A car arrives at the station for this train. This time, the train arrived an hour earlier, and Oleg started walking towards the car. Meeting the car on the way, he got in, and as a result, arrived 10 minutes earlier than planned. Determine the time Oleg met the car.
4. 10 hours 55 minutes.

$+(4$ points) - solution is correct (by any method)

+- (3 points) - solution is correct, but there are arithmetic errors

-+ (2 points) - there are reasonable ideas in solving the problem, but the problem is not solved in general