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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: All lovers are singers. All film directors are lovers
Conclusions:
I. All film directors are singers.
II. Some lovers are film directors.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : E
Explanation
Since both the statements are broad and affirmative, the conclusion must be broad affirmative and should not contain the intermediate term. So, conclusion I is valid. Conclusion II is the opposite of the second statement and so it 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 3 - Statements: Businessman marries only intelligent girls. Tosa is very intelligent.
Conclusions:
I. Tosa will marry a bureaucrat.
II. Tosa will not marry a bureaucrat.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : C
Explanation
The data does not mention whether all intelligent girls are married to Businessman. So, either I or II may 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 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 snakes are trees. All trees are cats.
Conclusions:
I. All snakes are cats.
II. All cats are snakes.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : A
Explanation
Since both the statements are broad and affirmative, the conclusion must be broad and affirmative. II conclusion being affirmative, distributes the term 'cats'.
Since the term 'cats' is distributed in II without being distributed in any of the statements, so conclusion II cannot follow. Thus, only I is valid.
In each of 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: All hunks are girls. Some girls are writers.
Conclusions:
I. All girls are hunks.
II. Some girls are not writers.
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 conclusions 1 and 2 contain the intermediate term 'girls', so none of them can 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 7 - Statements: All bakes are cakes. All lamps are cakes.
Conclusions:
I. Some lamps are bakes.
II. No lamp is bakes.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : C
Explanation
Either I or II is correct. Hence, option C is chosen.
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 boys are brave. All brave are celebrities.
Conclusions:
I. Some celebrities are boys.
II. All celebrities are boys.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : A
Explanation
Only option A is correct. Because some celebrities are boys is possible. But conclusion II is not possible.
The following question are given with some conclusions. Choose the options that logically follow the most.
Q 9 - Statements: All buses are trains. Some trains are cars.
Conclusions:
I. Some buses are cars.
II. Some cars are buses.
III. Some cars are trains.
IV. Some trains are buses.
Options:
Answer : E
Explanation
Since the intermediate term 'trains' is not distributed even once in the statements, no definite conclusion is valid. However, III is the opposite of the second statement while IV is the opposite of the first statement. So, both of them holds true.
The following question are given with some conclusions. Choose the options that logically follow the most.
Q 10 - Statements: Some sumps are caps. All caps are bats. Some tigers are caps.
Conclusions:
I. Some bats are tigers.
II. Some sumps are bats.
III. All bats are caps.
Options:
Answer : D
Explanation
Some saints are caps. All caps are bats.
Since one statement is particular, the conclusion must be particular and should not contain the intermediate term. So, it is valid that 'Some sumps are bats'. Thus, II is valid. Some tigers are caps. All caps are bats. So, it is valid that 'Some tigers are bats'. I is the opposite of this conclusion and so it holds true.
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