A: If the class has 100% who answered the first question, and 75% who answered the second question, then 75% + 45% = 85% of the class answered both correctly. If 20% of the class answered neither correctly, then 20% * 85% = 84% of the class answered both correctly. The answer is (B).
Answer the following multiple choice question with options (a), (b), (c), (d), (e) by reasoning step-by-step.
Q:If 75 percent of a class answered the first question on a certain test correctly, 45 percent answered the second question on the test correctly, and 20 percent answered neither of the questions correctly, what percent answered both correctly? Answer Choices: A)10% B)(8) 40% C)30% D)50% E)65%