CA Foundation · Quantitative Aptitude · Blood Relations
In a code, 'A @ B' means 'A is the sister of B', 'A # B' means 'A is the mother of B', and 'A $ B' means 'A is the son of B'. In the expression R $ S # T @ U, how is U related to R?
It cannot be determined. U is a child of S and so a sibling of R, but the code only says T is the sister of U. It does not say whether U is male or female, so brother or sister cannot be decided.
- ABrother
- BSister
- CCousin
- DCannot be determinedCorrect
Explanation
R $ S: R is the son of S. S # T: S is the mother of T. T @ U: T is the sister of U. So R, T and U are all children of S, which makes U a sibling of R. The code gives no gender for U, so U may be a brother or a sister and the relation cannot be fixed. Cousin is wrong because they share a mother.
Did you get it right without looking?
One question tells you little. A timed set on Blood Relations shows your real accuracy, how long you take and where you lose marks.
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