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Verbal Reasoning - Data Sufficiency - Discussion

Discussion Forum : Data Sufficiency - Section 1 (Q.No. 20)
Data Sufficiency
Directions to Solve

In each of the questions below consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and

Give answer

  • (A) If the data in statement I alone are sufficient to answer the question, while the data in statement II alone are not sufficient to answer the question
  • (B) If the data in statement II alone are sufficient to answer the question, while the data in statement I alone are not sufficient to answer the question
  • (C) If the data either in statement I alone or in statement II alone are sufficient to answer the question
  • (D) If the data given in both statements I and II together are not sufficient to answer the question and
  • (E) If the data in both statements I and II together are necessary to answer the question.

20.

Question: How is Tanya related to the man in the photograph ?

Statements:

  1. Man in the photograph is the only son of Tanya's grandfather.
  2. The man in the photograph has no brothers or sisters and his father is Tanya's grandfather.

I alone is sufficient while II alone is not sufficient
II alone is sufficient while I alone is not sufficient
Either I or II is sufficient
Neither I nor II is sufficient
Both I and II are sufficient
Answer: Option
Explanation:

From I, we conclude that the man is the only son of Tanya's grandfather i.e. he is Tanya's father or Tanya is the man's daughter.

From II, we conclude that the man's father is Tanya's grandfather. Since the man has no brothers or sisters, so he is Tanya's father or Tanya is the man's daughter.

Discussion:
50 comments Page 3 of 5.
Mitesh said:   6 years ago
In case some guys are saying that only son doesn't mean Tanya's grandfather has no daughter, yes it is possible but the old man would be maternal grandfather not the grandfather with respect to Tanya.

As per question option c is correct.
Mike Yako said:   7 years ago
Definitely C.

If you look at the explanation, both answers end in this phrase, "he is Tanya's father or Tanya is the man's daughter".
Vincent said:   8 years ago
The answer should have been C. Both statements convey the man as Tanya's father. The gender of Tanya is irrelevant to the answer.
Viresh fattepur said:   8 years ago
Answer should be C since both statements tells samething.
Namrata surve said:   8 years ago
Answer should be c, ultimately both the statements convey the same thing.
Madhu sudhan said:   8 years ago
We don't care about gender of Tanya. Tanya is child of the man in the photograph.
Lovish said:   8 years ago
It doesn't matter it Tanya's grandfather has a daughter or not the main concern is the man.
Yogesh said:   8 years ago
I think correct answer is C. Both statements say that Tanya's father is tha man in photograph.
Atanu said:   9 years ago
But I also think that Tanya's grandpa may be from his /her mother's father, so maybe the answer is correct.
Atanu said:   9 years ago
Yes, the answer must be C.
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