Question

Residency is a famous housing complex with many well-established individuals among its residents. A recent survey conducted among the residents of the complex revealed that all of those residents who are well established in their respective fields happen to be academicians. The survey also revealed that most of these academicians are authors of some best-selling books. Based only on the information provided above, which one of the following statements can be logically inferred with certainty?

• A. Some residents of the complex who are well established in their fields are also authors of some best-selling books.
• B. All academicians residing in the complex are well established in their fields.
• C. Some authors of best-selling books are residents of the complex who are well established in their fields.
• D. Some academicians residing in the complex are well established in their fields.

Hint:

Logical deductions are made based on statements with certainty. "All" statements are more definitive than "some" or "most" statements.

Answer 1

The Correct Option is B

- From the survey, we know that all residents who are well established in their fields are academicians. This is a universal statement, which means that anyone who is well-established in their field in this housing complex is definitely an academician. Therefore, all academicians in the complex must also be well-established in their fields. This makes option (B) a valid conclusion.
- Option (A): While the survey tells us that most of the academicians are authors of best-selling books, it does not guarantee that all well-established residents are authors. The statement "some" is not definite, so this cannot be inferred with certainty. Therefore, (A) is not correct.
- Option (C): The survey doesn't state that authors of best-selling books are always well-established residents of the complex. It only says that most of the academicians are authors. Thus, we cannot definitively conclude that some authors are well-established in their fields. Therefore, (C) is incorrect.
- Option (D): The survey tells us that all well-established residents are academicians, but it doesn't mention that all academicians are well-established. Hence, we cannot be sure that all or some academicians are well-established, which makes (D) an incorrect option.