Essayist: Every contract negotiator has been lied to by someone or other, and whoever lies to anyone is practicing deception. But, of course, anyone who has been lied to has also lied to someone or other.
Summary
The stimulus can be diagrammed as follows:
Notable Valid Inferences
Every contract negotiator has lied to someone, and therefore practiced deception. If a person has not practiced deception, they are not a contract negotiator.
A
Every contract negotiator has practiced deception.
This must be true. As shown below, by chaining the conditional claims, we see that all contract negotiators must have lied to someone and, in extension, have practiced deception.
B
Not everyone who practices deception is lying to someone.
This could be false. Practicing deception is not a sufficient condition for anything in our stimulus, which means there are no implications from knowing someone practices deception.
C
Not everyone who lies to someone is practicing deception.
This must be false. Whoever lies to anyone is practicing deception.
D
Whoever lies to a contract negotiator has been lied to by a contract negotiator.
This could be false. No information in the stimulus suggests that if someone lies to a contract negotiator they have been lied to by one in the past.
E
Whoever lies to anyone is lied to by someone.
This could be false. We know that anyone who has been lied to has lied to someone, but we don’t know if this conditional relationship goes both ways, as (E) suggests.
If you had trouble with this game, you should practice the other Games that are similar to this one (listed below). That way, you'll learn to see how the Logic Games really are all the same. That's how high scorers see them and that's how you can improve your speed, accuracy, and score.
Start with the Games in the same set as this Game. Then, work on the Games in the other sets.
The Easy In/Out Games Set
PT24-Game1 | PT29-Game1 | PT36-Game1 | PT48-Game1 | PT54-Game1 | PT63-Game1
_________________________
The Basic In/Out Games Set
PT33-Game2 | PT40-Game4 | PT45-Game3 | PT58-Game2
The Basic+ In/Out Games Set
PT34-Game4 | PT41-Game3
The Medium In/Out Games Set
PT20-Game2 | PT39-Game4 | PT47-Game2 | PT58-Game4 | PT59-Game3
The Difficult In/Out Games Set
PT31-Game2 | PT32-Game2 | PT49-Game3