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Doctors Medicines MCQs Q&A

Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements. Statements: All crocodiles are aquatic animals. Some crocodiles are alligators. Conclusions: I. Some alligators are aquatic animals. II. All alligators are aquatic animals. III. Some aquatic animals are alligators.

Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements. Statements: All crocodiles are aquatic animals. Some crocodiles are alligators. Conclusions: I. Some alligators are aquatic animals. II. All alligators are aquatic animals. III. Some aquatic animals are alligators. Correct Answer Only conclusions I and III follow

Least Possible Venn diagram:

[ alt="F4 Savita SSC 09-5-22 Pooja S D5" src="//storage.googleapis.com/tb-img/production/22/05/F4_Savita_SSC_09-5-22_Pooja%20S_D5.png" style="width: 298px; height: 122px;">

Conclusions:

I. Some alligators are aquatic animals → Follow (According to the given statements all crocodiles are aquatic animals and some alligators are crocodiles so some alligators are definitely aquatic animals)

II. All alligators are aquatic animals → Doesn't Follow (As all crocodiles are aquatic animals and some alligators are crocodiles. so it could be possible that all alligators are aquatic animals )

This possibility scenario can be shown by the following Venn diagram:

[ alt="F4 Savita SSC 09-5-22 Pooja S D6" src="//storage.googleapis.com/tb-img/production/22/05/F4_Savita_SSC_09-5-22_Pooja%20S_D6.png" style=" width: 246px; height: 136px;">

From the above Venn diagram, we can say that all alligators are aquatic animals but it is a possibility.

III. Some aquatic animals are alligators → Follow (from the given statements all crocodiles are aquatic animals and some alligators are crocodiles so some aquatic animals are definitely alligators).

Hence, the correct answer is "Only Conclusion I and III follow".

Related Questions

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