If A - B means that A is the brother of B, A + B means that A is the sister of B, A × B means that A is the father of B then which of the following expression shows that P is the brother of R?

Question

Question

This question was previously asked in

SSC CGL 2022 Tier-I Official Paper (Held On : 06 Dec 2022 Shift 1)

Answer 1

From the given information:

Now we solve the equations in the options:

Option 1) P - Q + R

⇒ P is the brother of Q, Q is the sister of R.

F1 SSC Amit A 22-02-2023 D14

Here P,Q and R are siblings therefore P is the brother of R.

Option 2) P + Q - R

⇒ P is the sister of Q, Q is the brother of R.

F1 SSC Amit A 22-02-2023 D15

Here P,Q and R are siblings but P is the sister of R.

Option 3) P × Q + R

⇒ P is the father of Q, Q is the sister of R.

F1 SSC Amit A 22-02-2023 D16

Here Q and R are siblings but P is the father. So P is the father of R.

Option 4) P - Q × R

⇒ P is the brother of Q, Q is the father of R.

F1 SSC Amit A 22-02-2023 D17

Here Q and P are siblings but Q is the father. So P is uncle of R.

Hence the correct answer is option 1.