GGST - Global General Service Verbal Reasoning: Logic Questions and Answers — Questions and Answers
Question 1: Read the following statements:
1. All project managers are certified.
2. Some certified professionals are engineers.
Based on these statements, which of the following conclusions is logically certain?
- Some project managers are engineers.
- All certified professionals are project managers.
- Some engineers are project managers.
- No certain conclusion can be drawn. (Correct answer)
Correct answer: No certain conclusion can be drawn.
The first statement says all project managers (A) are certified (B). The second says some certified professionals (B) are engineers (C). While there is an overlap between A and B, and B and C, there is no guaranteed overlap between A and C. The engineers who are certified might be a different group from the project managers who are certified. Therefore, no certain conclusion can be drawn about the relationship between project managers and engineers.
Question 2: A UN report states: 'If a country improves its educational standards, its economic growth will increase. If its economic growth increases, its poverty rate will decrease.' Assuming these statements are true, what can be logically concluded?
- If a country's poverty rate decreases, it must have improved its educational standards.
- A decrease in the poverty rate is directly caused only by improved educational standards.
- If a country improves its educational standards, its poverty rate will decrease. (Correct answer)
- A country cannot decrease its poverty rate without first improving its educational standards.
Correct answer: If a country improves its educational standards, its poverty rate will decrease.
This is a simple chain of conditional logic (a syllogism). If A leads to B, and B leads to C, then A leads to C. In this case, improving educational standards (A) leads to increased economic growth (B), and increased economic growth (B) leads to a decreased poverty rate (C). Therefore, improving educational standards (A) leads to a decreased poverty rate (C).
Question 3: Consider the argument: 'Every staff member who attended the advanced training completed the certification. Maria is a staff member who completed the certification. Therefore, Maria must have attended the advanced training.' Which logical fallacy is committed in this argument?
- Hasty Generalization
- Affirming the Consequent (Correct answer)
- Ad Hominem
- Circular Reasoning
Correct answer: Affirming the Consequent
The argument has the form: If P (attended training), then Q (completed certification). We know Q is true (Maria completed certification). The conclusion is that P must be true (Maria attended training). This is the fallacy of Affirming the Consequent. Just because attending the training guarantees certification, it doesn't mean it's the only way to get certified. Maria could have gotten certified through another path.
Question 4: Read the premises:
- No successful projects are over budget.
- Some of the recently launched initiatives were over budget.
Which of the following conclusions logically follows from the premises?
- All recently launched initiatives were unsuccessful.
- No successful projects were recently launched initiatives.
- Some of the recently launched initiatives were not successful projects. (Correct answer)
- Some successful projects were not recently launched initiatives.
Correct answer: Some of the recently launched initiatives were not successful projects.
If a project is over budget, it cannot be successful (from premise 1). Since some recently launched initiatives were over budget (premise 2), it logically follows that those specific over-budget initiatives cannot be successful projects. Therefore, at least some of the recently launched initiatives were not successful.
Question 5: A manager makes the following statement: 'We must either cut travel expenses or reduce hiring. Since reducing hiring would harm our long-term growth, we have no choice but to cut travel expenses.' This reasoning is an example of:
- A Straw Man Argument
- A False Dilemma
- An Appeal to Authority
- A Disjunctive Syllogism (Correct answer)
Correct answer: A Disjunctive Syllogism
A disjunctive syllogism is a valid argument form which is a syllogism having a disjunctive statement for one of its premises. The structure is: P or Q. Not P. Therefore, Q. In this case, 'P' is cutting travel expenses and 'Q' is reducing hiring. The argument is presented as (P or Q). The manager then argues against Q (reducing hiring is bad), concluding P (we must cut travel). This is a classic disjunctive syllogism.
Question 6: Analyze the following statements:
1. All field officers speak at least two languages.
2. Jean speaks three languages.
Which of the following can be concluded with absolute certainty?
- Jean is a field officer.
- All people who speak three languages are field officers.
- Some field officers speak three languages.
- The statements do not provide enough information to conclude whether Jean is a field officer. (Correct answer)
Correct answer: The statements do not provide enough information to conclude whether Jean is a field officer.
Statement 1 says that being a field officer is a sufficient condition for speaking at least two languages. It does not state that it is a necessary condition. Statement 2 tells us that Jean meets a condition (speaking more than two languages) that is common among field officers, but it does not mean Jean *must* be a field officer. Many people who are not field officers might also speak three languages. Therefore, we cannot be certain of Jean's role based on the information given.
