Car A runs at the speed of 50 km/hr and reaches its destination in 8 hours. Car B runs at the speed of 65 km/h and reaches its destination in 4 hours. What is the ratio of distances covered by Car A and Car B?  Choose one:
A) 3 : 7
B) 4 : 9
C) 20 : 13
D) 5 : 7
E) 6 : 11

Rationale: "car a travels 50 × 8 = 400 km car b travels 65 × 4 = 260 km the ratio is 400 : 260 = 40 : 26 = 20 : 13 the answer is c ."
Answer: C