Man bought 20 shares of Rs. 50 at 5 discount, the rate of dividend being 11 1/2. The rate of interest obtained is: Options:  A) 16%  B) 15%  C) 20%  D) 25%  E) 38.33%
Investment = 10*(40-10)= 
<gadget id="calculator">10*(40-10)</gadget>
<output>300</output>
300   Face value= 40*10= 
<gadget id="calculator">40*10</gadget>
<output>400</output>
400   dividend= 23/2*1000/100   ==115   ===&gt;115/300*100 = 38.33   ANSW38.33%R 38.33%
<result>E</result>
Man bought 20 shares of Rs. 50 at 5 discount, the rate of dividend being 11 1/2. The rate of interest obtained is: