Blood RelationsMCQMTP Dec 22 Series IQuestion 2595 of 195
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IfX+YmeansXisthemotherofY;X−YmeansXisthebrotherofY;X\displaystyle If X+Y means X is the mother of Y; X-Y means X is the brother of Y; X%Y means X is the father of Y and X\times Y means X is the sister of Y. Which of the following shows that A is the maternal uncle of B?

Options

AB+D×C−A\displaystyle B+D\times C-A
BB-D%A
CA−C+D×B\displaystyle A-C+D\times B
DA+C×D−B\displaystyle A+C\times D-B
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Correct Answer

✅ Option c — A−C+D×B\displaystyle A-C+D\times B

All Options:

  • AB+D×C−A\displaystyle B+D\times C-A
  • BB-D%A
  • CA−C+D×B\displaystyle A-C+D\times B
  • DA+C×D−B\displaystyle A+C\times D-B

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Detailed Solution & Explanation

Letusanalyzethestatementstep−by−step:1.Wewanttofindtheexpressionthatshows′AisthematernaluncleofB′.ThismeansAmustbethebrotherofB′smother.2.Letusanalyzethesymbols:−′X+Y′meansXisthemotherofY.−′X−Y′meansXisthebrotherofY.−′X−′X×Y′meansXisthesisterofY.3.LetusevaluateOptionC:′A−C+D×B′:−′A−C′meansAisthebrotherofC(Aismale).−′C+D′meansCisthemotherofD.−′D×B′meansDisthesisterofB.4.SinceDisthesisterofB,theyaresiblings,meaningC(themotherofD)isalsothemotherofB.5.SinceAisthebrotherofC(B′smother),AisthematernaluncleofB.6.Therefore,OptionCisthecorrectrelationship.Hence,∗∗OptionC∗∗isthecorrectanswer.\displaystyle Let us analyze the statement step-by-step: 1. We want to find the expression that shows 'A is the maternal uncle of B'. This means A must be the brother of B's mother. 2. Let us analyze the symbols: - 'X + Y' means X is the mother of Y. - 'X - Y' means X is the brother of Y. - 'X % Y' means X is the father of Y. - 'X \times Y' means X is the sister of Y. 3. Let us evaluate Option C: 'A - C + D \times B': - 'A - C' means A is the brother of C (A is male). - 'C + D' means C is the mother of D. - 'D \times B' means D is the sister of B. 4. Since D is the sister of B, they are siblings, meaning C (the mother of D) is also the mother of B. 5. Since A is the brother of C (B's mother), A is the maternal uncle of B. 6. Therefore, Option C is the correct relationship. Hence, **Option C** 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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