In a class of 250 students, 150 study Spanish and 100 study French. If a student must study at least one of these two languages, what percent of the students study French but NOT Spanish? Choose the correct answer:
A) 80%  B) 40%  C) 30%  D) 20%  E) 10%
No of students study french= 250- No of students study spanish = 250-150= 
<gadget id="calculator">250-150</gadget>
<output>100</output>
100   % of the students study french but not spanish= (100/250)*100= 
<gadget id="calculator">(100/250)*100</gadget>
<output>40</output>
40 %   Answer:40%
<result>B</result>
In a class of 250 students, 150 study Spanish and 100 study French. If a student must study at least one of these two languages, what percent of the students study French but NOT Spanish?