Compare the rates of two trains, one travelling at 90 km/hr and other is at 50m/s?	Select
A) 2:1  B) 1:2  C) 1:3  D) 3:1  E) 2:3
speed of the 1st train = 90km/hr   speed of the 2nd train = 50m/s = 50*18/5= 
<gadget id="calculator">50*18/5</gadget>
<output>180</output>
180km/hr   ratio of the speeds of the train= 90:180 = 1:2   Answer is 1:2
<result>B</result>
Compare the rates of two trains, one travelling at 90 km/hr and other is at 50m/s?