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Logical Deduction Online Quiz
Following quiz provides Multiple Choice Questions (MCQs) related to Logical Deduction. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.
The following question, two or three statements are given and after that two conclusions are provided. You have to take the statements to be true though it shows difference from the known facts. At first, read the statements and then go to the conclusions. Among the conclusions, decide which is logically correct and answer the question by choosing the options provided.
Q 1 - Statements: No lady teacher can play. Some lady teachers are sportsperson.
Conclusions:
I. Male sportsperson can play.
II. Some sportsperson can play.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : D
Explanation
Since one statement is not positive, the conclusion must not be positive. So, none of the conclusions is valid.
The following question, two or three statements are given and after that two conclusions are provided. You have to take the statements to be true though it shows difference from the known facts. At first, read the statements and then go to the conclusions. Among the conclusions, decide which is logically correct and answer the question by choosing the options provided.
Q 2 - Statements: Some swords are plastic. All swords are rusty.
Conclusions:
I. Some rusty things are plastic.
II. Some rusty things are not plastic.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : A
Explanation
Since one statement is particular, conclusion must not contain any middle term. So, I is valid. Since both the statements are affirmative, conclusions cannot be negative. Thus, II does not follow.
The following question, two or three statements are given and after that two conclusions are provided. You have to take the statements to be true though it shows difference from the known facts. At first, read the statements and then go to the conclusions. Among the conclusions, decide which is logically correct and answer the question by choosing the options provided.
Q 3 - Statements: All poles are pillars. Some boats are not poles.
Conclusions:
I. All pillars are boats.
II. Some boats are not pillars.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : D
Explanation
Clearly, the term 'pillars' is distributed in both the conclusions without being distributed in any of the statements. So, none of the conclusions is valid.
The following question, two or three statements are given and after that two conclusions are provided. You have to take the statements to be true though it shows difference from the known facts. At first, read the statements and then go to the conclusions. Among the conclusions, decide which is logically correct and answer the question by choosing the options provided.
Q 4 - Statements: No women are donkey. Madhuri is a women.
Conclusions:
I. Madhuri is not a donkey.
II. All women are not Madhuri
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : A
Explanation
Since one statement is not positive, the conclusion must not be positive. Conclusion II cannot follow as it contains the intermediate term. So, only I is valid.
The following question, two or three statements are given and after that two conclusions are provided. You have to take the statements to be true though it shows difference from the known facts. At first, read the statements and then go to the conclusions. Among the conclusions, decide which is logically correct and answer the question by choosing the options provided.
Q 5 - Statements: All scientists are fair. All fair persons are strong.
Conclusions:
I. All scientists are strong.
II. Some strong peoples are fair.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : E
Explanation
As all scientists are fair and all fair persons are strong, all scientists are fair and strong indeed. So statement I holds true. Similarly as all fair persons are strong that means some strong persons are fair. Hence conclusion II also holds true.
The following question, two or three statements are given and after that two conclusions are provided. You have to take the statements to be true though it shows difference from the known facts. At first, read the statements and then go to the conclusions. Among the conclusions, decide which is logically correct and answer the question by choosing the options provided.
Q 6 - Statements: No women scientist can play. Some women scientists are athletes.
Conclusions:
I. Male athletes can play.
II. Some athletes can play.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : D
Explanation
Since one statement is not positive, the conclusion must not be positive. So, none of the conclusion is valid.
The following question, two or three statements are given and after that two conclusions are provided. You have to take the statements to be true though it shows difference from the known facts. At first, read the statements and then go to the conclusions. Among the conclusions, decide which is logically correct and answer the question by choosing the options provided.
Q 7 - Statements: Some kings are handsome. All handsome are greedy.
Conclusions:
I. All kings are greedy.
II. Some kings are greedy.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : B
Explanation
Only option II is correct. Some kings are greedy.
The following question, two or three statements are given and after that two conclusions are provided. You have to take the statements to be true though it shows difference from the known facts. At first, read the statements and then go to the conclusions. Among the conclusions, decide which is logically correct and answer the question by choosing the options provided.
Q 8 - Statements: Some blankets are covers. All covers are papers. All papers are bags.
Conclusions:
I. Some bags are blankets.
II. Some papers are blankets.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : E
Explanation
Both the conclusions are correct in this regard. Hence, option E is correct.
The following question, two or three statements are given and after that two conclusions are provided. You have to take the statements to be true though it shows difference from the known facts. At first, read the statements and then go to the conclusions. Among the conclusions, decide which is logically correct and answer the question by choosing the options provided.
Q 9 - Statements: All greens are ripe. All ripe are mango.
Conclusions:
I. All greens are definitely mango.
II. There is a possibility that all mangoes are green.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : E
Explanation
Both the conclusions are true. As all greens are ripe and all ripe are mango, hence, all green are definitely mango. Conclusion II also holds true. This is because there is a clear possibility that all mangoes are green.
The following question are given with some conclusions. Choose the options that logically follow the most.
Q 10 - Statements: Some pens are tablets. All schools are tablets. Some universities are schools.
Conclusions:
I. Some universities are pens.
II. Some pens are schools.
III. Some universities are tablets.
Options:
Answer : C
Explanation
Some pens are tablets. All schools are tablets.
Since the intermediate term 'tablets' is not distributed even once in the statements, so no definite conclusion is valid. Some universities are schools. All schools are tablets. Since one statement is particular, conclusion must not contain any middle term. So, it is valid that 'Some universities are tablets'. Thus, III is valid. Some pens are tablets. Some universities are tablets. Since both the statements are particular, no definite conclusion can be drawn. Hence, only III is valid.
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