A car travels at a speed of 60 km/h and then at 80 km/h, covering a total distance of 280 km in 4 hours. How long did it travel at 60 km/h?

Mon, 04 May 2026 16:00:39 +0000

How Long Did the Car Travel at 60 km/h and 80 km/h? Solve This Distance & Time Problem When faced with a scenario where a car travels part of a journey at 60 km/h and the rest at 80 km/h, determining how long the car moved at each speed can seem tricky—but with the right approach, it’s straightforward. Let’s break down a classic problem where a car covers a total of 280 km in 4 hours, moving first at 60 km/h and later at 80 km/h. The key is setting up equations based on distance, speed, and time. ### Problem Recap: - Total distance: 280 km - Total time: 4 hours - Speeds: 60 km/h and 80 km/h - Unknown: Time traveled at 60 km/h (call this time t hours) - Therefore, time traveled at 80 km/h = (4 – t) hours ### Step 1: Express Distances Using Speed × Time Distance = Speed × Time Let time at 60 km/h be t → Distance = 60 × t = 60t Let time at 80 km/h be (4 – t) → Distance = 80 × (4 – t) = 80(4 – t)