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In 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. All red are pen. II. No pen is white. Conclusions: I. No white is pen. II. No red is white. III. All pens are red.

In 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. All red are pen. II. No pen is white. Conclusions: I. No white is pen. II. No red is white. III. All pens are red. Correct Answer Only I and II

Consider the following least possible Venn diagram,

[ alt="14 s1 10" src="//storage.googleapis.com/tb-img/production/18/07/14_s1_10.PNG" style="height:169px; width:344px">

Conclusions:

I. No white is pen → True (It is definitely true as no pen is white).

II. No red is white → True (It is definitely true as all red are pen and no pen is white).

III. All pens are red → False (It is possible but not definite).

Hence, only I and II follows.

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