![Two cars start at the same time from the same location and go in the same direction. The speed of the first car is 50 km/h and the speed of the second car is 60 km/h](https://www.gkseries.com/blog/wp-content/uploads/2023/08/Two-cars-start-at-the-same-time-from-the-same-location-and-go-in-the-same-direction.-The-speed-of-the-first-car-is-50-km-h-and-the-speed-of-the-second-car-is-60-km-h.jpg)
Q. Two cars start at the same time from the same location and go in the same direction. The speed of the first car is 50 km/h and the speed of the second car is 60 km/h. The number of hours it takes for the distance between the two cars to be 20 km is .
(A) 1
(B) 2
(C) 3
(D) 6
Ans: 2
Solution:
Speed of car A = 50 km/hr
Speed of car B = 60 km/hr
Since, both cars A and B are moving in same direction, the relative speed = 60 – 50 = 10 km/hr
Distance required between them = 20 km
∴ Time=Distance/Speed=20/10=2 hrs