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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: Some kings are queens. All of the queens are beautiful.
Conclusions:
I. All kings are beautiful.
II. All queens are kings.
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 particular, the conclusion must be particular. 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 devils are angels. All social workers are angels
Conclusions:
I. Some devils are social workers.
II. Some social workers are devils
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : D
Explanation
The first statement is an I type proposition. So, the intermediate term 'angels' forming the significance is not distributed. The second statement is an A type proposition. So, the intermediate term 'angels' forming the significance is not distributed. Since the intermediate term is not distributed even once in the statements, no definite 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 3 - Statements: Many trams are trucks. All trucks are trains.
Conclusions:
I. Some trams are trains.
II. No truck is a tram.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : A
Explanation
Since the first statement is particular, conclusion must not contain any middle term. Thus, 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 4 - Statements: All trucks are handles. All cups are handles.
Conclusions:
I. All cups are trucks.
II. Some handles are not cups.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : D
Explanation
Both the statements are A type propositions. So, in either, the intermediate term 'handles' forming the significance is not distributed. Since the intermediate term is not distributed even once in the statements, no definite 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 5 - Statements: All mobiles are roads. All roads are calls.
Conclusions:
I. All calls are mobiles.
II. Some calls are mobiles.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : B
Explanation
From the statement all roads are calls and all mobiles are roads, we can deduce that some calls are mobiles but all calls are mobiles is certainly not on the cards. Hence, option B 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 6 - Statements: Some brinjals are bananas. All bananas are pumpkins.
Conclusions:
I. Some brinjals are pumpkins.
II. All pumpkins are brinjals.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : A
Explanation
Some brinjals are definitely pumpkins because some brinjals are bananas and all bananas are pumpkins. But conclusion II is not on the cards. Hence, option A 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 7 - Statements: Some monkeys are fools. Some fools are rich.
Conclusions:
I. Some monkeys are rich.
II. Some rich are monkeys.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : D
Explanation
Since both the statements are particular, no definite 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 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: Some birds are pigeons. Some mosquitoes are pigeons. All pigeons are beautiful.
Conclusions:
I. Some birds are beautiful.
II. Some mosquitoes are beautiful.
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 follow in this question. Some birds are beautiful and also some mosquitoes are beautiful. This happens because in the statement it is given that all pigeons are beautiful. Hence, option E is correct.
The following question are given with some conclusions. Choose the options that logically follow the most.
Q 10 - Statements: Some clothes are cottons. Some cotton is bags.
Conclusions:
I. No cloth is a bag.
II. All cottons are bags.
III. Some bags are clothes.
IV. No cottons is a cloth.
Options:
Answer : D
Explanation
None of the above conclusions holds true. Hence option D is correct.