A motorcyclist goes from Bombay to Delhi, a distance of 200 kms at an average of 50 kmph speed. Another man starts from Bombay by car 2 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 most appropriate option.
A) 1:2  B) 1:7  C) 1:9  D) 1:4  E) 1:1
T = 200/50= 
<gadget id="calculator">200/50</gadget>
<output>4</output>
4 h   T= 4 - 3= 
<gadget id="calculator">4 - 3</gadget>
<output>1</output>
1   Time Ratio= 4:1   Speed Ratio = 1:4   Answer: 1:4
<result>D</result>
A motorcyclist goes from Bombay to Delhi, a distance of 200 kms at an average of 50 kmph speed. Another man starts from Bombay by car 2 Â½ hours after the first, and reaches Delhi Â½ hour earlier. What is the ratio of the speed of the motorcycle and the car?