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Doctors Medicines MCQs Q&A

  In the following question below are given two statements followed by two 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: Some roads are highways. No highways are railways. Some rail is railways. Conclusions: I. Some highways are roads. II Some roads are railways. III. All rail is railways. IV. Some rail is not highways.

  In the following question below are given two statements followed by two 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: Some roads are highways. No highways are railways. Some rail is railways. Conclusions: I. Some highways are roads. II Some roads are railways. III. All rail is railways. IV. Some rail is not highways. Correct Answer Both I and Iv follow.

The least possible Venn diagram is given below:

[ alt="F1 V.B Madhu T.T.P 23.11.19 D14" src="//storage.googleapis.com/tb-img/production/19/11/F1_V.B_Madhu_T.T.P_23.11.19_D14.png" style="width: 328px; height: 59px;">

Conclusions:

I. Some highways.are roads → True 

II Some roads are railways.→ False

III. All rail is railways.→ False

IV. Some rail is not highways → True (the part which is railway is not a part of highway hence true)

Hence, the correct answer is Both I and Iv follow..

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