Question

In a certain code language,

'A + B' means 'A is the mother of B',

'A - B' means 'A is the brother of B'.

'A * B' means 'A is the wife of B' and

'A ÷ B' means ' A is the father of B'.

Based on the above, how is S related to U if 'Q * R-S +T + U'?

• A. Daughter
• B. Mother's husband
• C. Mother's father
• D. Brother's wife

Answer 1

Answer:

C. Mother's father

Good — now the expression is different.
Let’s solve carefully.

Given:

• A + B → A is the mother of B

• A − B → A is the brother of B

• A × B → A is the wife of B

• A ÷ B → A is the father of B

Expression:

Q × R − S ÷ T + U

Decode left to right

Q × R
Q is the wife of R

R − S
R is the brother of S

So:

• R and S are siblings.

• Q is sister-in-law of S.

S ÷ T
S is the father of T

So S is male.

T + U
T is the mother of U

So T is female.

Build the relationship

S is father of T.
T is mother of U.

So S is the father of the mother of U.

That means:

S is the maternal grandfather of U.

Final Answer:

S is the Mother's father of U.