![In a journey of three unequal laps, a car covers a distance of 200 km in 4 h in the first, while another 162](https://www.gkseries.com/blog/wp-content/uploads/2024/03/In-a-journey-of-three-unequal-laps-a-car-covers-a-distance-of-200-km-in-4-h-in-the-first-while-another-162.jpg)
In a journey of three unequal laps, a car covers a distance of 200 km in 4 h in the first, while another 162 km at the speed of 15 m/s in the second lap. It covered the remaining distance of the final lap in 4 h such that the average speed of the car for entire journey was 50 km/h. What was the speed of the car in the third lap of the journey?
(a) 42
(b) 47
(c) 49
(d) 52
Sol:
![](https://www.gkseries.com/blog/wp-content/uploads/2024/03/image-72-1024x877.png)