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#2 - Local, Must Be True

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Complete Question Explanation
(The complete setup for this game can be found here: viewtopic.php?t=7371)

The correct answer choice is (D)

If John passes all of his courses, then he does not receive an E in any course, and his grade possibilities are only A, B, C, or D.

Because his geology grade is higher than language block (G :longline: IR or G :longline: RI), at a minimum the geology, Italian, and Russian grades must be three separate grades. This could be A-B-C, A-C-D, or B-C-D. However, since his geology grade is one grade higher than his physics grade, at a minimum the geology, physics, Italian, and Russian grades must be either A-B-C, B-C-D, or A-B-C-D:

J92_Game_#1_#2_diagram 1.png
J92_Game_#1_#2_diagram 1.png (10.17 KiB) Viewed 440 times


In each instance, at least one B and one C must be assigned, and so answer choice (D) is correct.
acp25
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Aloha!

Thank you for your diagram. It helped! However, I want to ask why E & H are not diagrammed.
Jonathan Evans
PowerScore Staff
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Location: DFW, Texas

Hi, ACP,

Good question! Basically in the explanations we provide enough of a diagram to show what is necessary to answer the question and occasionally exclude "extra" information that doesn't lead to the answer.

It's not "wrong" to diagram additional information; in fact, the extra info can be quite helpful as a resource to help answer later global questions. However, in our illustrations we endeavor to show the most direct and efficient path to the solution. Thus you may notice that we only partially diagram certain LG questions.

I hope this helps!