1.

If P% Q means P is the brother of Q: P! Q means P is the father Q and P * Q means P is the son of Q, which of the following shows that P is the brother of S?

A. P * Q ! R % S
B. P ! Q * R % S
C. P * Q % R ! S
D. P ! Q % R * S
Answer» B. P ! Q * R % S


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