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 paternal aunt of R?

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SSC CGL 2022 Tier-I Official Paper (Held On : 01 Dec 2022 Shift 1)
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  1. P – Q × R
  2. P – Q + R
  3. P × Q + R
  4. P + Q – R

Answer (Detailed Solution Below)

Option 2 : P – Q + R
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Detailed Solution

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Common Diagram 28.01.2020 D3

Given :

A is

Symbol

×

+

Meaning

Brother

Sister

Father

to B

So,

  • Option - (1) : P – Q × R → P is the sister of Q who is the brother of R.

F1 Savita SSC 30-1-23 D62

Here, P is the sister of R.

  • Option - (2) : P – Q + R → P is the sister of Q who is the father of R.

F1 Savita SSC 30-1-23 D63

Here, P is paternal aunt of R.

  • Option - (3) : P × Q + R → P is the brother of Q who is the father of R.

F1 Savita SSC 30-1-23 D64

Here, P is the paternal uncle of R.

  • Option - (4) : P + Q – R → P is the father of Q who is the sister of R.

F1 Savita SSC 30-1-23 D65

Here, P is the father of R.

Thus, only option - (2), 'P – Q + R' shows that P is the paternal aunt of R.

Hence, "Option - (2)" is the correct answer.

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