A car travels a distance of 540 km. For the first 3 hours, it travels at a speed of 80 km/h, and for the remaining hours, it reduces its speed to 60 km/h. Find the total time taken by the car to cover the entire distance.
8 hours
Distance covered in the first 3 hours: \(3\times80 = 240\) km.
Remaining distance: \(540-240 = 300\) km, covered at 60 km/h, taking \(\dfrac{300}{60}=5\) hours.
Total time: \(3+5 = 8\) hours.
Hence, the total time taken by the car to cover the entire distance is 8 hours.
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