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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: All lions are tigers. Some tigers are horses.
Conclusions:
I. Some horses are lions.
II. No horse is lion.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : C
Explanation
There is equal chance for both the conclusions to happen. Some horses are lions and no horse is lion has 50% chance. Hence, option C 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 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: Some books are bibles. Some bibles are mirrors.
Conclusions:
I. Some mirrors are books.
II. No book is mirror.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : C
Explanation
Both the statements are particular so no definite conclusion is valid. Here occurrence of both the conclusions is equally likely. Thus, either I or 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 5 - Statements: All boys are smokers. Some smokers are lovers.
Conclusions:
I. All smokers are boys.
II. Some lovers are not smokers.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : D
Explanation
Since the intermediate term 'smokers' 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 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: All mangoes are shiny. No shiny things are cheap.
Conclusions:
I. All mangoes are cheap.
II. Shiny mangoes 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 mango is cheap'. Since all mangoes are shiny, we may substitute 'mangoes' with shiny mangoes'. Thus, conclusion 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 8 - Statements: All lizards are mangoes. Some mangoes are streets. All streets are mountains.
Conclusions:
I. Some mountains are mangoes.
II. Some mountains are lizards.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : A
Explanation
Some mountains are mangoes is the only possible answer. But some mountains are lizards is not correct. Hence, option A is correct.
The following question are given with some conclusions. Choose the options that logically follow the most.
Q 9 - Statements: Some bags are pockets. No pocket is a packet.
Conclusions:
I. No bag is a packet.
II. Some bags are not pouches.
III. Some pockets are bags.
IV. No pocket is a bag.
Options:
Answer : C
Explanation
Since one statement is particular and the other is not positive, the conclusion must be particular but not positive and should not contain the intermediate term. So, II is valid. III is the opposite of the first statement and thus it also holds true.
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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