One train is traveling 18 kmph and other is at 10 meters a second. Ratio of the speed of the two trains is?
Pick:
A) 1:2  B) 5:6  C) 5:0  D) 5:4  E) 5:1
18 * 5/18 = 10   5:10 =&gt; 1:2   1:2nswer: 1:2
<result>A</result>
One train is traveling 18 kmph and other is at 10 meters a second. Ratio of the speed of the two trains is?