Ravi purchased 20 dozens of toys at the rate of Rs. 350 per dozen. He sold each one of them at the rate of Rs. 33. What was his percentage profit?  Choose the correct choice from the following answers:  A) 23%  B) 1.2%  C) 13.14%  D) 34.1%  E) 12.2%
C   C.P. of 1 toy = 350/12 = Rs. 29.16   S.P of 1 toy = Rs. 33   Profit = 3.83/31.25 * 100 = 13.14%
<result>C</result>
Ravi purchased 20 dozens of toys at the rate of Rs. 350 per dozen. He sold each one of them at the rate of Rs. 33. What was his percentage profit?