The ratio 2:10 expressed as percent equals to Options.
A) 50 %  B) 30 %  C) 25 %  D) 20 %  E) 90%
Explanation:   Actually it means 2 is what percent of 10, which can be calculated as,   (2/10)*100 = 2* 10= 
<gadget id="calculator">2* 10</gadget>
<output>20</output>
20   Answer: Option 20 %
<result>D</result>
The ratio 2:10 expressed as percent equals to