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A is father of O; B is mother of N. The sister of M and O is N. Which of the following statements is definitely not true?
  • a)
    B is the mother of O
  • b)
    M is the sister of O
  • c)
    N is the son of A
  • d)
    B has one daughter
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
A is father of O; B is mother of N. The sister of M and O is N. Which ...
“The sister of M and O is N” ⇒ N is female. So calling N “the son of A” is definitely false. The other statements could be true or false depending on whether B is also O’s mother and on M’s gender.
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A is father of O; B is mother of N. The sister of M and O is N. Which ...
Understanding the Relationships
To determine which statement is definitely not true, let's analyze the relationships given in the problem:
- A is the father of O.
- B is the mother of N.
- The sister of M and O is N.
Breaking Down the Family Tree
1. A and O: A is the father of O, meaning O is A's child.
2. B and N: B is the mother of N, implying that N is B's child.
3. Siblings: N is the sister of M and O. This means:
- N has a brother, M.
- O is also a sibling of N.
Identifying Relationships
From the statements provided, we can deduce that:
- Since O and N are siblings, and A is the father of O, A is also the father of N.
- Therefore, B (mother of N) must also be the mother of O.
- M, being a sibling of both N and O, suggests that M is also a child of A and B.
Analyzing the Statements
Now let's evaluate the options:
a) B is the mother of O: This is true because O and N are siblings, and B is the mother of N.
b) M is the sister of O: This is false because M is the brother (not sister) of O.
c) N is the son of A: This is definitely not true since N is identified as a sister, hence a daughter of A.
d) B has one daughter: This statement is true because B has at least N as a daughter.
Conclusion
The correct answer is option 'C', as it incorrectly identifies N as a son when N is a daughter. Therefore, this statement is definitely not true.
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A is father of O; B is mother of N. The sister of M and O is N. Which of the following statements is definitely not true?a)B is the mother of Ob)M is the sister of Oc)N is the son of Ad)B has one daughterCorrect answer is option 'C'. Can you explain this answer? for CAT 2025 is part of CAT preparation. The Question and answers have been prepared according to the CAT exam syllabus. Information about A is father of O; B is mother of N. The sister of M and O is N. Which of the following statements is definitely not true?a)B is the mother of Ob)M is the sister of Oc)N is the son of Ad)B has one daughterCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for CAT 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A is father of O; B is mother of N. The sister of M and O is N. Which of the following statements is definitely not true?a)B is the mother of Ob)M is the sister of Oc)N is the son of Ad)B has one daughterCorrect answer is option 'C'. Can you explain this answer?.
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