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Some statements are followed by two inferences, I and II. The inferences may be wrongly or correctly drawn. Choose the correct answer. Statement: No fruit is a plant. No plant is a tree. Inferences:…

Question and options

Some statements are followed by two inferences, I and II. The inferences may be wrongly or correctly drawn. Choose the correct answer.

Statement: No fruit is a plant. No plant is a tree.
Inferences:
I. No tree is a fruit.
II. No fruit is a tree.
  1. If only inference I follows
  2. If only inference II follows
  3. Both I and II follow
  4. Neither I nor II follows

Answer and explanation

Correct answer: D - Neither I nor II follows
Both statements are negative (no fruit is a plant; no plant is a tree), and two negative premises give no valid conclusion. Fruits and trees may or may not overlap, so neither "no tree is a fruit" (I) nor "no fruit is a tree" (II) follows.

Practice for these exams

  • CUSAT CAT Five-Year LL.B.

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