In a coded relation, if P × Q means P is the mother of Q, P ÷ Q means P is the son of Q, and P + Q means P is the sister of Q, what is the relationship of R if P × R ÷ Q means P is the mother of R and R is the son of Q?

Answer: B. R is the son of P
From P × R ÷ Q, we deduce that P is the mother of R and R is the son of Q, making R the son of P.