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 fishes are thick in size. Some fishes are heavy.
Conclusions:
I. All sharks are thick in size.
II. All dolphins are not thick in size
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, the conclusion must be also same and should be free from any intermediate term. So, it is valid that 'Some sharks are thick in size'. I is a cumulative result of this conclusion and the first statement. Thus, only I 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: Some engineers are fools. Asis is an engineer.
Conclusions:
I. Some fools are engineers.
II. Asis is a fool.
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 intermediate term 'engineer' is not distributed even once in the statements, no definite conclusion is valid. 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 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: 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: 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: 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: 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 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.
