Group Games Questions - - Question 8

If F and S are in group 3, which one of the following must be true?

ElizabethGlassmann June 19, 2020

Why Adult "Q"

In this question the answer was D (Q in group 2). Yet K is in group one as well. How would I figure that K was not in group one? Thank you :)

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Skylar June 19, 2020

@ElizabethGlassmann, happy to help!

The answer to this question is (A) "G is in group 2." Answer choice (D) "Q is in group 2" is incorrect.

We are told that F and S are in group 3.
1: __ __ __
2: __ __ __
3: F S __

Rule #2 tells us that F and J must be in the same group, so we should also place J in group 3. This fills the group.
1: __ __ __
2: __ __ __
3: F S J

Rule #5 tells us that neither H nor T can be in group 2. Since we only have groups 1 and 2 open, this means that they must both be in group 1.
1: T H __
2: __ __ __
3: S F J

Rule #3 says that G and T cannot be in the same group. Since T is in group 1, we place G in group 2. Rule #4 says that H and R cannot be in the same group. Since H is in group 1, we place R in group 2.
1: T H __
2: R G __
3: S F J

Each group has one adult. We do not know where to place Q and K, as either could be in group 1 or group 2. Our final diagram is as follows:
1: T H (Q/K)
2: R G (K/Q)
3: S F J

The only answer choice that is consistent with our diagram is (A), so it is correct.

Does that make sense? Hope it helps! Please let us know if you have any other questions!