PrepTest 33, Section 1, Question 12
Bird-watchers explore a forest to see which of the following six kinds of birds�grosbeak, harrier, jay, martin, shrike, wren�it contains. The findings are consistent with the following conditions:
Bird-watchers explore a forest to see which of the following six kinds of birds�grosbeak, harrier, jay, martin, shrike, wren�it contains. The findings are consistent with the following conditions:
Bird-watchers explore a forest to see which of the following six kinds of birds�grosbeak, harrier, jay, martin, shrike, wren�it contains. The findings are consistent with the following conditions:
Bird-watchers explore a forest to see which of the following six kinds of birds�grosbeak, harrier, jay, martin, shrike, wren�it contains. The findings are consistent with the following conditions:
If harriers are in the forest, then grosbeaks are not.
If jays, martins, or both are in the forest, then so are harriers.
If wrens are in the forest, then so are grosbeaks.
If jays are not in the forest, then shrikes are.
Suppose the condition is added that if shrikes are in the forest, then harriers are not. If all other conditions remain in effect, then which one of the following could be true?
The forest contains both jays and shrikes.
The forest contains both wrens and shrikes.
The forest contains both martins and shrikes.
Jays are not in the forest, whereas martins are.
Only two of the six kinds of birds are not in the forest.
Explanations
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