A motorcyclist goes from Bombay to Pune, a distance of 224 kms at an average of 32 kmph speed. Another man starts from Bombay by car 2 ½ hours after the first, and reaches Pune ½ hour earlier. What is the ratio of the speed of the motorcycle and the car?  Choose the most appropriate option.
A) 1 : 2
B) 1 : 5
C) 4 : 7
D) 1 : 1
E) 1 : 8

Rationale: "t = 224 / 32 = 7 h t = 7 - 3 = 4 time ratio = 7 : 4 speed ratio = 4 : 7 answer : c"
Answer: C