If X × Y means that X is the mother of Y, X – Y means that X is the father of Y, X ÷ Y means that X is the sister of Y, then which of the following expression shows that P is the paternal grandfather of R?

Question

Question

This question was previously asked in

SSC CGL 2022 Tier-I Official Paper (Held On : 12 Dec 2022 Shift 4)

Answer 1

By using the symbols in the table given below, we can draw the following family tree:

X × Y means that X is the mother of Y.

X - Y means that X is the father of Y.

X ÷ Y means that X is the sister of Y.

Given relation code:

Find: Which expression shows that P is the maternal grandfather of R.

Let's check each option one by one.

Option 1) Q - P × R

Q is the Father of P, and P is the Mother of R.

Here, P is the mother of R. (Incorrect)

Option 2) P - Q ÷ R

P is the Father of Q, and Q is the Sister of R.

Here, P is the father of Q. (Incorrect)

Option 3) P - Q - R

P is the Father of Q, and Q is the father of R.

Here, P is the paternal grandfather of R. (Correct)

Option 4) P × Q - R

P is the Mother of Q, and Q is the Father of R.

Here, P is the maternal grandmother of R. (Incorrect)

Hence, the correct answer is "Option 3".