Discussion of Question with ID = 001 under Deductive-Reasoning

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Question

  1. All the trees in the park are brown trees.
  2. Some of the trees in the park are green.
  3. All green in the park are brown trees.

If the first two statements are true, the third statement is.

A

true.

B

false.

C

uncertain.

D

none.

Soln.
Ans: a

All of the trees in the park are brown trees, so all green in the park are brown trees.

First statement gives: All are brown. The second says some are green, so all green have to be brown.


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