Walking across campus, a student interviewed a group of students. 25% of the students took a finance class last semester, 54% took a marketing class last semester, and 40% took neither a finance nor a marketing class last semester. What percent of the students in the group took both a finance and a marketing class?
Pick one
A) 60%	B) 50%	C) 25%	D) 19%	E) 10%
{Total} = {finance} + {marketing} - {both} + {neither}   100 = 25 + 54 - {both} + 40   {both} = 19%.   Answer: 19%.
<result>D</result>
Walking across campus, a student interviewed a group of students. 25% of the students took a finance class last semester, 54% took a marketing class last semester, and 40% took neither a finance nor a marketing class last semester. What percent of the students in the group took both a finance and a marketing class?