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Complete Question Explanation
(The complete setup for this game can be found here: https://forum.powerscore.com/lsat/viewtopic.php?t=31745)
The correct answer choice is (B).
This is a Rule Substitution question that asks you to suspend the second rule and replace it with a new rule that has the same exact effect. The goal with these question is to mimic the effect of the rule while not adding in any new effects or consequences (or falling short of the exact effect of the original rule).
Since there's no way to predict what the answer choices will contain, you should move immediately to the answers in these questions, assuming you completely understand the rule in question. If you don't know the rule well or aren't 100% comfortable with it, take a moment to review how the rule works and which variables it effects.
In this case, the presence of J knocks out Y, which has the further effect of forcing P to be used as an ingredient.
Answer choice (A): This relationship can be stated as P J (which will turn out to be the reverse of what is needed, as seen in answer choice (B)). This answer fails because it would allow J and Y to appear together in some solutions.
Answer choice (B): This is the correct answer. This is a Rule-to-Rule connection answer. We know the rule being replaced is J Y, and we also know that P Y. So, by adding a rule that states J P, we get the following "new" chain:
- J P Y
which results in the original relationship being replaced:
Answer choice (C): This rule is stated as J Y, which actually means that when one of the two is absent, then the other must occur. That would create new scenarios under both basic templates, which is not allowed per the question stem. Thus, this answer choice is incorrect.
Answer choice (D): This answer works in part. When there are exactly 5 ingredients, the group would appear exactly the same (OGKT and then the choice of P or Y), so that matches our original rule. However, when there are 6 ingredients, there are new possibilities (namely that J and Y could appear together) and that eliminates this answer choice.
Answer choice (E): This answer would allow for J and Y to appear together in a 6 ingredient recipe, which does not match the effects the original rule. Thus, this answer is incorrect.
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