Car A and car B are moving towards each other from the distance of 3 km. Speed of car B is twice the speed of car A. What are the speeds of these two cars if cars are going to meet after 50 seconds.

**(A)** 40 m/s and 80 m/s

**(B)** 20 m/s and 40 m/s

**(C)** 10 m/s and 20 m/s

**(D)** 30 m/s and 60 m/s

**(E)** None of the above

Distance between two cars = 3 km = 3000 metres

Let speed of car A m/s

Let speed of car B m/s

Car A and car B are moving in the opposite directions. So, the relative speed m/s

It is also given to us that two cars are going to meet after 50 seconds.

Speed

m/s

Therefore, speed of car A m/s

And, speed of car B 40 m/s

Hence, the answer is **(B)**.