A motorcyclist goes from Nagpur to Delhi, a distance of 600 kms at an average of 60 kmph speed. Another man starts from Nagpur by car 5 Â½ hours after the first, and reaches Delhi Â½ hour earlier. What is the ratio of the speed of the motorcycle and the car?	Choose the correct choice from the following answers
A) 1:2
B) 1:7
C) 1:9
D) 1:5
E) 2:5
T = 600/60= 
<gadget id="calculator">600/60</gadget>
<output>10</output>
10 h   T= 10 - 6= 
<gadget id="calculator">10 - 6</gadget>
<output>4</output>
4   Time Ratio= 10:4= 5:2   Speed Ratio = 2:5   Answer: 2:5
<result>E</result>
A motorcyclist goes from Nagpur to Delhi, a distance of 600 kms at an average of 60 kmph speed. Another man starts from Nagpur by car 5 Â½ hours after the first, and reaches Delhi Â½ hour earlier. What is the ratio of the speed of the motorcycle and the car?