Jacob marks his goods up by 75% and then offers a discount on the marked price. The profit that he makes after offering the discount is 40%. What % discount did Jacob offer?  Choose the correct choice from the following choices:
A) 15%
B) 20%
C) 25%
D) 35%
E) 75%
Solution:   let x is the cost price.   so profit 40% means final selling price = 1.40x   marked up price = 1.75x   let discount be r%   so   1.40x=1.75x(1 - r/100)   after solving the equation r= 20%   ANSWER:20%
<result>B</result>
Jacob marks his goods up by 75% and then offers a discount on the marked price. The profit that he makes after offering the discount is 40%. What % discount did Jacob offer?