Question:
Blood relations in a group of persons are defined by the symbols \(+\), \(-\), and \(\times\) as explained below:
\[
P+Q \Rightarrow P \text{ is the husband of } Q
\]
\[
P-Q \Rightarrow P \text{ is the sister of } Q
\]
\[
P\times Q \Rightarrow P \text{ is the son of } Q
\]
Which of the following represents the relation: A is the daughter of B?
Blood relations in a group of persons are defined by the symbols \(+\), \(-\), and \(\times\) as explained below:
\[
P+Q \Rightarrow P \text{ is the husband of } Q
\]
\[
P-Q \Rightarrow P \text{ is the sister of } Q
\]
\[
P\times Q \Rightarrow P \text{ is the son of } Q
\]
Which of the following represents the relation: A is the daughter of B?
Show Hint
In blood relation coding, first identify gender and then establish family connections step-by-step.
Updated On: Jun 12, 2026
- \(A-B\times C\)
- \(A+B+C\)
- \(A+B\times C\)
- \(A-C\times B\)
Show Solution
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The Correct Option is D
Solution and Explanation
Step 1: Interpret option (D). \[ A-C \] means \[ A \text{ is sister of } C \] Hence \(A\) is female. Also, \[ C\times B \] means \[ C \text{ is son of } B \] Thus \(C\) is child of \(B\). Since \(A\) is sister of \(C\), \[ A \text{ is also child of } B \] and since \(A\) is female, \[ A \text{ is daughter of } B \] Therefore, \[ \boxed{A-C\times B} \] is correct.
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