A man was traveling on a motorcycle at the speed of 50 km/h for 2 1 / 2 hours. Then a car full of youngster overtake him at a speed of 80 km/h. To overtake them he increased his speed to 70 km/h, but he could not overtake the car even after 2 1 / 2 hours. How far did he travel in the total time of 4 hours