The speed of car A is x kmph and the speed of car B is (x + 20) kmph after traveling towards each other for 4 hours from point P to Q and Q to P respectively. The distance between point P to Q is 480 km.If the speed of the car A is reduced by 20% after traveling 4 hours it needs 10 more hours to complete the journey. Find the distance traveled by car B in 4 hours.
1
270 km
2
300 km
3
240 km
4
320 km
5
350 km