- Reasoning - Home
- Reasoning - Overview
- Reasoning
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: Every boy is a student. Every student is inexperienced.
Conclusions:
I. Every boy is inexperienced.
II. Some inexperienced are students.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : E
Explanation
'Every' is equivalent to 'All'. Since both the statements are broad and affirmative, the conclusion must be broad and affirmative and should not contain the intermediate term. So, conclusion I is valid. 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 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 papers are pens. Ink is a paper.
Conclusions:
I. Ink is not a pen.
II. Ink is a pen.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : C
Explanation
Since the intermediate term 'papers' is not distributed even once in the statements, no definite conclusion is valid. However, I and II involve only the extreme terms and form a complementary pair. 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 4 - Statements: Some books are pens. No pen is pencil.
Conclusions:
I. Some books are pencils.
II. No book is pencil.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : C
Explanation
Only option C is correct. Because either of the options can be correct. Each has equal chance to occur. So, 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 5 - Statements: All water is divine. All churches are divine.
Conclusions:
I. All water is churches.
II. All churches are water.
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 'divine' is not distributed even once in the statements, no definite conclusion can be drawn.
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 boats are pilgrims. All pilgrims are pious.
Conclusions:
I. All pious are pilgrims.
II. Some boats are pious.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : B
Explanation
From the statement all pilgrims are pious and some boats are pilgrims we can get that some boats are pious definitely. So conclusion II is definitely true. But conclusion I is not true. Hence, option B.
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: All trees are roots. No root is branch.
Conclusions:
I. No branch is tree.
II. Some branches are trees.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : A
Explanation
As all trees are roots and no root is branch, we can deduce that no branch is tree. 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 9 - Statements: All greens are ripe. All ripe are mango.
Conclusions:
I. All greens are definitely mango.
II. There is a possibility that all mangoes are green.
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 true. As all greens are ripe and all ripe are mango, hence, all green are definitely mango. Conclusion II also holds true. This is because there is a clear possibility that all mangoes are green.
The following question are given with some conclusions. Choose the options that logically follow the most.
Q 10 - Statements: Some canals are streams. Some streams are deserts. All deserts are roads.
Conclusions:
I. Some roads are streams.
II. Some roads are canals.
III. Some deserts are canals.
Options:
Answer : B
Explanation
Some canals are streams. Some streams are deserts. Since both the statements are particular, no definite conclusion is valid. Some streams are deserts. All deserts are roads. Conclusion II is particular because of sentence.