By selling an article for $195, a person gains $45. What is the gain %?
Choose the correct choice from the following answers:
A) 25% B) 30% C) 50% D) 20% E) 10%
S.P. = $195   Gain = $45   C.P. = 195-45= 
<gadget id="calculator">195-45</gadget>
<output>150</output>
150   Gain%= 45/150 * 100= 
<gadget id="calculator">45/150 * 100</gadget>
<output>30</output>
30%   Answer is 30%
<result>B</result>
By selling an article for $195, a person gains $45. What is the gain %?