Audi and BMW cars and a river - All-Russian MO 2004 Regional (R4) 8.1
Source:
September 27, 2024
algebra
Problem Statement
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?