Assume the statements are true.
Statements: All ferns are shrubs. Some shrubs are vines. All vines are creepers.
Conclusions:
I. Some ferns are creepers.
II. Some creepers are shrubs.

Only I followsCorrect answerYour answerOnly II followsCorrect answerYour answerEither I or II followsCorrect answerYour answerNeither I nor II followsCorrect answerYour answer

Show the answer and explanation

CorrectNot quiteAnswer B

Correct answer: B

The shrubs that are vines are creepers, so some shrubs are creepers, and reversing, some creepers are shrubs: II follows.
Ferns are only some of the shrubs, and the vine overlap may lie outside the ferns. So I is not definite.
Only II follows.

Worth noting

Four groups, but only two links are strong. 'All + Some' at the start already breaks the chain for ferns.

Concept: Some + All in the middle of a chain; All + Some breaks
Typical timeTypical: 110 s
Your timeYours: —

The rule this testsThree statements

Practise this chapter →

Ten questions from Syllogisms, at your own pace.

Assume the statements are true.Statements: All ferns are shrubs. Some shrubs are vines. All vines are creepers.Conclusions:I. Some ferns are creepers.II. Some creepers are shrubs.

Explanation

Assume the statements are true.
Statements: All ferns are shrubs. Some shrubs are vines. All vines are creepers.
Conclusions:
I. Some ferns are creepers.
II. Some creepers are shrubs.