Question

Which of the following statements is true?

• A. C introduced the wrong answer to question 27.
• B. E introduced the wrong answer to question 46.
• C. F introduced the wrong answer to question 14.
• D. H introduced the wrong answer to question 46.

Answer 1

The correct option is C F introduced the wrong answer to question 14.

If a person copies from one source, he must have the same blank answers as the source and exactly one wrong answer more than the source (as the copier has introduced one wrong answer on his own). If the person copies from two sources, the distinct wrong answers from the two sources would be left blank by the copier and the same wrong answers in the two sources would be copied as they are.
F introduced the wrong answer to question 14. Because nobody else has done question 14 wrong.

A, D & G's source - Mastermind
B's source - E & G
C's source - I
E & H's source - A
F's source - E & H
I's source - D & E