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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 hard workers win. All hard workers eat well.
Conclusions:
I. All those who eat well are hard workers.
II. All those who win eat well.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : D
Explanation
We cannot get to any conclusion. All those who eat well are hard workers and all those who win eat well cannot be true hence, option D 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: 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 men are foodie. Some men are cook.
Conclusions:
I. Some foodies are cooks.
II. Some cooks are foodie.
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 options are correct. Some foodies are cooks and some cooks are foodie, both holds true. 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 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.
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 grasses are trees. No tree is shrub
Conclusions:
I. No grasses are shrubs.
II. Some shrubs are grasses.
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. So, conclusion II cannot 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: Some kings are handsome. All handsome are greedy.
Conclusions:
I. All kings are greedy.
II. Some kings are greedy.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : B
Explanation
Only option II is correct. Some kings are greedy.
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 giraffes are camels. Some camels are tigers. No tigers are lions.
Conclusions:
I. Some lions are camels.
II. There is possibility of some goats to be lions.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : B
Explanation
Yes, there are definitely possibilities of some goats to be lions. But some lions are camels are not true. 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 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 computers are TVs. Some TVs are radios.
Conclusions:
I. Some computers are radios.
II. Some radios are computers.
III. All radios are TVs.
IV. All TVs are computers.
Options:
Answer : D
Explanation
None of the above conclusions are having mere possibilities of becoming true. Hence, option D is correct.
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