A: The number of students who answered the first question correctly was 3 / 5 * 150 = 75. The number of students who answered both questions incorrectly was 150 - 75 = 75. Four fifths of the remainder answered the second question correctly, a total of 4 / 5 * 75 = 48. The number of students who answered both questions incorrectly is 75 - 48 = 12. The answer is (D).
Answer the following multiple choice question with options (a), (b), (c), (d), (e) by reasoning step-by-step.
Q:In an engineering class that contained 150 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? Answer Choices: A)4 B)6 C)10 D)12 E)24