Car A runs at the speed of 33km/hr & reaches its destination in 7hr. Car B runs at the speed of 44 km/h & reaches its destination in 5h. What is the respective ratio of distances covered by Car A & Car B? Choose the correct choice from the following choices:
A) 20 : 23
B) 25 : 27
C) 21 : 20
D) 29 : 23
E) 24 : 25

Rationale: "sol . distance travelled by car a = 33 × 7 = 231 km distance travelled by car b = 44 × 5 = 220 km ratio = 231 / 220 = 21 : 20 c"
Answer: C