One train is traveling 36 kmph and other is at 12.5 meters a second. Ratio of the speed of the two trains is? Choose one
A) 5:4  B) 5:6  C) 5:0  D) 5:4  E) 4:5
36 * 5/18 = 12.5   20:25 =&gt; 4:5   Answer: 4:5
<result>E</result>
One train is traveling 36 kmph and other is at 12.5 meters a second. Ratio of the speed of the two trains is?