Question 81

Logical Reasoning Statement and Conclusions Easy

$$ \textbf { Statement:All engineers are good at math.} $$ $$ \textbf{ Conclusion 1: Some people good at math are engineers. } $$ $$ \textbf{ Conclusion 2: All people good at math are engineers. } $$

(A) Only Conclusion 1 follows
(B) Only Conclusion 2 follows
(C) Neither follows
(D) Both Conclusions follow
View Dynamic Solution & Explanation
Correct Solution: Option A

Step-by-step Solution:

Logical Analysis

The problem asks us to determine which conclusions can be logically drawn from the given statement. We can analyze this using the principles of set theory, often visualized with a Venn diagram.

The Statement

"All engineers are good at math."

This means that the set of all "engineers" is a complete subset of the larger set of "people good at math". In a Venn diagram, the circle for "engineers" would be drawn entirely inside the circle for "people good at math".


Evaluating the Conclusions

Conclusion 1: Some people good at math are engineers.

  • Since the entire group of engineers is within the group of people good at math, it is a necessary truth that at least some of the people who are good at math are, in fact, engineers.
  • This is a valid logical inference.
  • Therefore, Conclusion 1 follows.

Conclusion 2: All people good at math are engineers.

  • This statement reverses the original premise. The original statement does not rule out the possibility that there are people who are good at math but are not engineers (e.g., mathematicians, physicists).
  • This is a logical fallacy known as the fallacy of the converse.
  • Therefore, Conclusion 2 does not follow.

Final Answer

Only Conclusion 1 logically follows from the given statement.