MathDB

7

Part of 1986 ITAMO

Problems(1)

no of cars that pass along the highway per hour, from a bus

Source: ITAMO 1986 p7

2/2/2020
On a long enough highway, a passenger in a bus observes the traffic. He notes that, during an hour, the bus going with a constant velocity overpasses aa cars and gets overpassed by bb cars, while cc cars pass in the opposite direction. Assuming that the traffic is the same in both directions, is it possible to determine the number of cars that pass along the highway per hour? (You may assume that the velocity of a car can take only two values.)
combinatorics