If 85 percent of the test takers taking an old paper and pencil GMAT exam answered the first question on a given math section correctly, and 70 percent of the test takers answered the second question correctly, and 5 percent of the test takers answered neither question correctly, what percent answered both correctly?
Choices:
A) 60 %  B) 65 %  C) 70%  D) 75%  E) 80%
{Total} = {First correctly} + {Second correctly} - {Both correctly} + {Neither correctly}   100 = 85 + 70 - {Both correctly} + 5   {Both correctly} = 60.   60 %nswer: 60 %.
<result>A</result>
If 85 percent of the test takers taking an old paper and pencil GMAT exam answered the first question on a given math section correctly, and 70 percent of the test takers answered the second question correctly, and 5 percent of the test takers answered neither question correctly, what percent answered both correctly?