Logical reasoning PrepTest 151 · Section 2 · Question 19

Incorrect. This answer doesn't have a conditional with two necessary conditions. That first sentence is also suspect, since the stimulus didn't have an "even though" statement in it.

Correct. Argument or Facts:
Argument

Valid or Flawed:
Valid

Question Type:
Parallel Reasoning

Stimulus Summary:
Elected
Elected → Fundamental shift in electorate AND Well-run campaign
Therefore, fundamental shift in electorate

Answer Anticipation:
The stimulus presents a fact, gives a conditional triggered by the fact and with two necessary conditions, and concludes one of the two necessary conditions.

Answer Explanation:
Even though this answer shifts the order of the statements, it's parallel in argument structure:
Closed
Closed → Strong Competition AND Unsatisfied customers
Therefore strong competition

Key Takeaway:
If you see a conditional statement with an AND or OR term in it, rejoice! Most answer will either lack that con/disjunction, or it will include it on the wrong side of the conditional, for easier eliminations.

Incorrect. The conditional statement here only has one necessary condition. It also brings in the idea of no one being able to argue something, which is different than making a statement of fact. People can argue all sorts of untrue things.

Incorrect. The conditional here has two sufficient conditions, not necessary conditions. If you take the contrapositive, it would have an OR statement in the necessary condition, which would also not be parallel. The conclusion also has two terms instead of the one from the stimulus (even though the stimulus could have validly reached a two-part conclusion).

Incorrect. While this answer does establish a conditional statement with two necessary conditions, it presents them as missing in the premise. In the stimulus, one of the necessary conditions is concluded.