In an engineering class that contained 100 students, the final exam consisted of 2 questions. Three fifths of the students answered the first question correctly. If four fifths of the remainder answered the second question correctly, how many students answered both questions incorrectly?	Choose the correct choice from the following choices:
A) 4 B) 6 C) 8 D) 12 E) 24
1st Question : Three fifths of the students answered the first question correctly - so 3/5âˆ—100=60   2nd Question : four fifths of the remainder answered the second question correctly so 4/5âˆ—(100âˆ’60)=4/5âˆ—40=32   total students who answered at least one Q correct =60+32= 
<gadget id="calculator">60+32</gadget>
<output>92</output>
92   so students who answered BOTH incorrectly= 100âˆ’92=8   ANSWER:8
<result>C</result>
In an engineering class that contained 100 students, the final exam consisted of 2 questions. Three fifths of the students answered the first question correctly. If four fifths of the remainder answered the second question correctly, how many students answered both questions incorrectly?