Blood RelationsPYQ Jan 26Question 4528 of 195
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P, Q, R, S, T, and U are six members of a family. R is spouse of Q. U is mother of T and S is daughter of U. P's daughter is T and R's son is P. There are two couples in the family. Which of the following is correct?

Options

AT is granddaughter of Q
BQ is grandfather of T
CR is mother of P
DQ is uncle of S
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Correct Answer

✅ Option a — T is granddaughter of Q

All Options:

  • AT is granddaughter of Q
  • BQ is grandfather of T
  • CR is mother of P
  • DQ is uncle of S

Detailed Solution & Explanation

Let us analyze the relationships step-by-step:
1. **Couple 1:** R is the spouse of Q. So, {R,Q}\displaystyle \{R, Q\} is a married couple.
2. P is the son of R. Since R and Q are married, P is the son of both R and Q.
3. P's daughter is T.
4. U is the mother of T. Since P is the father of T (as P's daughter is T), P and U must be married. So, **Couple 2** is {P,U}\displaystyle \{P, U\}.
5. S is the daughter of U. Since P and U are married, S is also the daughter of P, making S and T sisters.

Now let us check the generations:
- Generation 1: R and Q
- Generation 2: P and U
- Generation 3: T and S

Since P is the son of Q, and T is the daughter of P, T is the granddaughter of Q. This relationship holds true regardless of the genders of R and Q.

Let us evaluate the options:
- **Option a:** "T is granddaughter of Q" - This is correct.
- **Option b:** "Q is grandfather of T" - Since the gender of Q is not specified, Q could be the grandfather or grandmother. Thus, this is not necessarily correct.
- **Option c:** "R is mother of P" - Similarly, R could be the father or mother. Thus, this is not necessarily correct.
- **Option d:** "Q is uncle of S" - Q is S's grandparent, not uncle. Incorrect.

Hence, **Option A** is the correct answer.

About This Chapter: Blood Relations

Paper

Paper 3: Quantitative Aptitude

Weightage

5 Marks

Key Topics

Blood Relations

This chapter covers Blood Relations and is part of Paper 3: Quantitative Aptitude in the CA Foundation exam.

View Official ICAI Syllabus

Exam Strategy Tip

This topic carries 5 Marks weightage. Focus on understanding core concepts rather than memorizing.

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