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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: Color of all oranges are golden. Those are golden in colors are not cheap.
Conclusions:
I. All oranges are cheap.
II. Golden-colored oranges are not cheap.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : B
Explanation
Clearly, the conclusion must be broad but not positive and should not contain the intermediate term. So, it is valid that 'No orange is cheap'. Since all oranges are golden in color. Thus, II 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: All windows are panes. No pane is wall.
Conclusions:
I. No window is wall.
II. No wall is pane.
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 one statement is not positive, the conclusion must be broad but not positive. Also, the conclusion should not contain the intermediate term. So, I is valid. However, conclusion II is the opposite of the second statement and thus 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 5 - Statements: Some desks are caps. No cap is black.
Conclusions:
I. Some caps are desks.
II. No desk is black.
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 and the other statement is not positive, the conclusion must be particular but not positive and should not contain the intermediate term. So, it is valid that 'Some desks are not black'. However, conclusion I is the opposite of the first statement and thus it 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 sands are pebbles. Some pebbles are rocks.
Conclusions:
I. Some rocks are sand.
II. Some pebbles are sand.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : B
Explanation
Conclusion II is valid. 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 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 rings are circles. Some circles are globes.
Conclusions:
I. There is possibility that some rings are globes.
II. All globes are circles.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : A
Explanation
There is 100% possibility that some rings are globes. But all globes can never be circles. So, conclusion I is true but II is false.
The following question are given with some conclusions. Choose the options that logically follow the most.
Q 10 - Statements: Some bullets are guns. Some guns are beads. All beads are rings.
Conclusions:
I. Some rings are guns.
II. Some guns are bullets.
III. Some rings are bullets.
Options:
Answer : C
Explanation
II is the opposite of first statement and so I holds true.
Some bullets are guns. Some guns are beads.
Since both the statements are particular, no definite conclusion can be drawn. Some guns are beads. All beads are rings. Since one statement is particular; conclusion must not contain any middle term. So, it is valid that 'Some guns are rings'. I is the opposite of this conclusion and so it holds true. Some bullets are guns. Some guns are rings. Since both the statements are particular, no definite conclusion can be drawn.