Logical reasoning PrepTest 134 · Section 1 · Question 20

Incorrect. This answer is a reversal of the rule about the Main Street location, and Pat doesn't establish that the reverse is true since it's established she can get her coupon at another location (plus, she's not a member).

Incorrect. While there is a rule that applies to members that don't rent more than ten videos in a month, two issues here. First, this answer is about members who haven't rented more than ten videos overall. Second, just because a rule exists that covers a case doesn't mean that there are any examples of that case, and Pat isn't a member (by implication), so this answer is incorrect.

Incorrect. We have no indication that this is the case. The rules talk about two mutually exclusive groups, and Pat (by implication) isn't a member.

Correct. Argument or Facts:
Facts

Question Type:
Must Be True

Stimulus Summary:
Member AND Rented 10+ videos in past month → Coupon only where last movie was rented
Member AND not Rented 10+ videos in past month → Coupon only at Main Street
Pat: not Rented 10+ videos in past month, can get coupon at Walnut Lane

Answer Anticipation:
This question is establishing a few rules and then asking us to see how they apply to a specific case. We played a little fast with the conditional logic there, but it should do the job in letting us see how Pat works with the new coupon rules.

Taking a look at those rules, we can see that, of the two, Pat would fall into the second one since she hasn't rented more than 10 videos in the past month. If this rule applied to her, however, she could get the coupon only at the Main Street location. Since she can actually pick it up at the Walnut Lane location, that second rule tells us that she can't be a member (again, if she were, she'd need to pick up the coupon at Main Street).

But doesn't that contradict the initial statement? Nope. It doesn't state that only members are eligible for the coupon—just that members are eligible for it. Since Pat is eligible for a coupon at a location outside of where a member would be eligible for it, she must not be a member.

Answer Explanation:
Pat can't be a member since members who haven't rented at least 10 movies in the past month (like Pat) can get their coupon only at the Main Street location, and Pat can get hers at the Walnut Lane location. Since we have an example of a non-member eligible for a coupon, we know that this answer must be true.

Key Takeaway:
Many Must Be True questions that establish a series of rules that apply to the same general group but break it into subgroups—here, members into subgroups based on frequency of renting—"assume" the bigger group. In other words, that other group is present throughout all statements. However, be careful—you can't assume that group, and without having it noted that Pat is a member, that can't be inferred. In fact, here, it was inferrable that she wasn't a member based on the rules that were established.

Incorrect. There's no rule that establishes someone can lose eligibility for a coupon once earned.