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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 nurses are surgeons. Some surgeons are wealthy.
Conclusions:
I. Some nurses are wealthy.
II. Some wealthy are nurses.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : D
Explanation
Since both the statements are particular, 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 2 - Statements: All bags are chocos. All lamps are chocos.
Conclusions:
I. Some lamps are bags.
II. No lamp is bag.
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 'chocos' 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. So, 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 3 - Statements: Businessman marries only intelligent girls. Tosa is very intelligent.
Conclusions:
I. Tosa will marry a bureaucrat.
II. Tosa will not marry a bureaucrat.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : C
Explanation
The data does not mention whether all intelligent girls are married to Businessman. So, either I or II may 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 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 cakes are toffees. All toffees are chocolates.
Conclusions:
I. Some chocolates are toffees.
II. Some toffees are not cakes.
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. Thus, it is valid that 'Some toffees are chocolates'. Conclusion I is the opposite of the second statement and so it holds true. Since both the statements are affirmative, the conclusion 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 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 bananas are trees. All trees are pens. All pens are boats.
Conclusions:
I. Some boats are bananas.
II. Some pens are bananas.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : E
Explanation
Both conclusion I and II follow. 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 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: 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 sumps are caps. All caps are bats. Some tigers are caps.
Conclusions:
I. Some bats are tigers.
II. Some sumps are bats.
III. All bats are caps.
Options:
Answer : D
Explanation
Some saints are caps. All caps are bats.
Since one statement is particular, the conclusion must be particular and should not contain the intermediate term. So, it is valid that 'Some sumps are bats'. Thus, II is valid. Some tigers are caps. All caps are bats. So, it is valid that 'Some tigers are bats'. I is the opposite of this conclusion and so it holds true.