MathDB

8.1

Part of 2004 All-Russian Olympiad Regional Round

Problems(1)

Audi and BMW cars and a river - All-Russian MO 2004 Regional (R4) 8.1

Source:

9/27/2024
On two intersecting roads with equal constant speeds Audi and BMW cars are moving fast. It turned out that as in 17.00, and at 18.00 the BMW was twice as far from the intersection, than ''Audi''. At what time could an Audi drive across the river?
algebra