by ShariS937 Fri Oct 23, 2020 4:06 pm
It looks like this is a double-inference, or an inference derived from two rules working together.
Conditional Sketch:
L: GH
M: G / H and ?
S: FH (no S: G allowed, and we can't have S: FF bc we'd need L: HH for that outcome to happen)
Long Way Around:
Given
L: GH
Rule 2 says one of L must be in M, so
L: GH
M: G / H and ?
This is a MBT, so the ? means this second slot is probably irrelevant to the question. Put your placeholder "?" and move to the next rule.
Geek note; we're hunting for something that MBT and M only gives us 3 things that CBT. Tricky, but that means there's more to uncover. (:
Rule 3 says however many of H are in Lifestyle there is an equal number of F in Sports, so
L: GH
M: G / H and ?
S: F ?
Rule 4 says no G in S, so - from here, the question is who among M: G / H / ? must join S: F ?
G can't come over, so H must. Since we don't know who the second person in M must be (it could be G, H or F), H is the only element (within the given info) that has to go into S. Also, since we can't have S: FF and we can't have S: FG. S: FH is the only option.
Brute Force:
Looking back at the answer choices, 3 are about who must be in the Metro column (with all those could-be elements!).
Consider testing the two choices that ask about Sports first (D and E). E is obviously MBF, if you test it against rule 3.
If you've given this game too much time and only have a couple seconds left to spend on this single question, jump on D, flag in case you have time left to review, and move on.