Town A is 50 km south of town B. Town C is 120 km east of town B. Is it quicker to travel directly from A to C by car at 90 km h¡1 or from A to C via B in a train travelling at 120 km h¡1?
Town A is 50 km south of town B. Town C is 120 km east of town B. Is it quicker to travel directly from A to C by car at 90 km h¡1 or from A to C via B in a train travelling at 120 km h¡1?
