Question

Read the following information carefully to choose the best option for the question:

‘P + Q’ means that ‘P is the son of Q’,
‘P × Q’ means that ‘P is the husband of Q’,
‘P – Q’ means that ‘P is the brother of Q’.

Which of the following means ‘A is the son-in-law of G’?

• A. A × U + S × G
• B. A + S
• C. A – S + U × G
• D. A × U

Answer 1

The Correct Option is A

1. Determine the expression for 'A is the son-in-law of G'.
2. Symbol definitions:
   • 'P + Q': P is the son of Q.
   • 'P × Q': P is the husband of Q.
   • 'P – Q': P is the brother of Q.
3. Analyze options:
   • Option 1: A × U + S × G
     • 'A × U' means A is the husband of U.
     • 'U + S' means U is the son of S.
     • 'S × G' means S is the husband of G.
     • Combining these: A is married to U, who is the child of S, who is married to G. Therefore, A is the son-in-law of G.
   • Option 2: A + S
     • 'A + S' means A is the son of S.
   • Option 3: A – S + U × G
     • 'A – S' means A is the brother of S.
     • 'U × G' means U is the husband of G.
     • This option does not establish A as the son-in-law of G.
   • Option 4: A × U
     • 'A × U' means A is the husband of U.
     • No information connects this to G as a parent-in-law.
4. The correct expression for 'A is the son-in-law of G' is A × U + S × G.