If A × B means that A is the father of B,
A + B means that A is the mother of B,
A – B means that A is the brother of B.
Then which of the following expression shows that Q is the brother of P?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. P – Q × R.
Option1: P + Q – R
From the above tree, Q is the son of P.
Option 2: P – Q + R
From the above tree, Q is the sister of P.
Option 3: P × R – Q
From the above tree, Q is the son/daughter of P.
Option 4: P – Q × R
From the above tree, Q is the brother of P.