A bag marked at Rs. 80 is sold for Rs. 68. The rate of discount is	Choose the correct option:
A) 10% B) 15% C) 20% D) 22% E) None
Solution   Rate of discount	= (12 / 80 x 100)%   = 15%.   Answer 15%
<result>B</result>
A bag marked at Rs. 80 is sold for Rs. 68. The rate of discount is