Two cars start from the same point and travel in opposite directions. If one car travels at 40 km/h and the other at 50 km/h, after 5 hours, how far apart are they?

Correct option is A

​Given:
- Car 1 travels at a speed of 40 km/h.
- Car 2 travels at a speed of 50 km/h.
- Both cars travel in opposite directions for 5 hours.
Concept Used:
The total distance between the two cars after 5 hours is the sum of the distances each car has traveled.
Distance traveled by Car
Distance of Car 1 = $$\text{Speed of Car 1} \times \text{Time} = 40 \times 5 = 200 \text{ km}$$​
Distance traveled by Car 2:
Distance of Car 2 =$$\text{Speed of Car 2} \times \text{Time} = 50 \times 5 = 250 \text{ km}$$​
Total distance between the two cars:
Total Distance = 200 + 250 = 450 
The two cars are 450 km apart after 5 hours​