If A + B means A is the brother of B; A - B means A is the sister of B; and A x B means A is the father of B. Which of the following means that C is the son of M? MCQ with Answer and Explanation
If A + B means A is the brother of B; A - B means A is the sister of B; and A x B means A is the father of B. Which of the following means that C is the son of M?
A. M x N - C + F
B. F - C + N x M
C. M - N x C + F
D. N + M - F x C
Answer: Option A
Solution (By JKSSB Mock Tests)
In option D, M x N means M is the father of N. N - C means N is the sister of C, so M is also the father of C. C + F means C is the brother of F, which establishes that C is male. Therefore, C is the son of M.
Explanation:
The brother of the man's wife is the man's brother-in-law. This brother-in-law is the son of the lady's only brother. Thus, the lady's brother is the father of the man's wife. Therefore, the lady is the sister of the wife's father (father's sister).
A + B means 'A is the father of B';
A - B means 'A is the sister of B';
A × B means 'A is the brother of B';
A ÷ B means 'A is the daughter of B';
If, R + S × TV is U, then what is the X relation of S with U?
Explanation:
Following the expression through standard division/addition logic for the missing symbols, S aligns as a female child one generation below, making her a daughter.
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