Q:

If P ÷ Q means that P is the mother of Q, P × Q means that P is the father of Q, P – Q means that P is the sister of Q, then which of the following expression shows that A is the father of C?

• 1
  B × A – C
• 2
  A × B – C
• 3
  A × B ÷ C
• 4
  A – B × C