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In each of the following question below are given some statements followed by some conclusions. Taking the given statements to be true even if they seem to be at variance from commonly known facts, read all the conclusions and then decide which of the given conclusion logically follows the given statements. Statements: I. Some bricks are stones II. All cakes are bricks Conclusions: I. Some stones are bricks II. Some stones are cakes III. All bricks are stones

In each of the following question below are given some statements followed by some conclusions. Taking the given statements to be true even if they seem to be at variance from commonly known facts, read all the conclusions and then decide which of the given conclusion logically follows the given statements. Statements: I. Some bricks are stones II. All cakes are bricks Conclusions: I. Some stones are bricks II. Some stones are cakes III. All bricks are stones Correct Answer Only conclusion I follows.

 Shortcut Trick

  • If there are 2 conclusions for the same set of objects where one starts with some and the other starts with all, then only one of them will be true.
  • However, one must remember that both can be false at a time.

Hint

  • Using the trick, we can eliminate option 3 directly.

The possible Venn diagram is:

[ alt="283" src="//storage.googleapis.com/tb-img/production/18/01/283.PNG" style="height:92px; width:238px">

Explanation:

I. Some stones are bricks → It is a definite case, hence true.

II. Some stones are cakes → It is not a definite case, hence false.

III. All bricks are stones → It is not a definite case, hence false.

Thus, only conclusion (I) follows.

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