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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: All oceans are waters. Some waters are boats.
Conclusions:
I. Some boats are oceans.
II. All waters are boats
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 say that some boats are oceans and also all waters cannot be boats, hence, neither of the options is valid. 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 2 - Statements: Some sticks are drums. Some drums are heavy.
Conclusions:
I. All heavy are either drums or sticks.
II. Some heavy are drums.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : B
Explanation
Option I is not correct because both the statements are particular, so no definite conclusion can be ascertained but II conclusion is the opposite of the second 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 3 - Statements: Some papers are pens. Some pencils are pens.
Conclusions:
I. Some pens are pencils.
II. Some pens are papers.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : E
Explanation
Since both statements are particular, no definite conclusion is valid. However, conclusion I is the opposite of second statement, while conclusion II is the opposite of the first statement. So, both of them hold 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 windows are panes. No pane is wall.
Conclusions:
I. No window is wall.
II. No wall is pane.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : E
Explanation
Since both the statements are broad and one statement is not positive, the conclusion must be broad but not positive. Also, the conclusion should not contain the intermediate term. So, I is valid. However, 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 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: All bandages are garlic. All garlic are cakes.
Conclusions:
I. All cakes are bandages.
II. Some cakes are bandages.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : B
Explanation
All cakes cannot be bandages if we look at the statements. But some cakes are definitely bandages. 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 7 - Statements: Some monkeys are fools. Some fools are rich.
Conclusions:
I. Some monkeys are rich.
II. Some rich are monkeys.
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 8 - Statements: All bacteria are amoeba. No fish is amoeba. Some amoebas are fungi.
Conclusions:
I. There is possibility that some fishes are amoeba.
II. Some bacteria are fish.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : A
Explanation
Option A is correct because surely there is possibility that some fishes are amoeba. But some bacteria are fish is not possible. 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: Some ellipses are eggs. No egg is hyperbola. All hyperbolas are parabola.
Conclusions:
I. There is a possibility that all eggs can be parabola.
II. Some ellipse are definitely not hyperbola.
Options:
A - Only conclusion I is correct.
B - Only conclusion II is correct.
C - Either I or II is correct.
Answer : E
Explanation
Clearly there is possibility that all eggs can be parabola because no egg is hyperbola and all hyperbolas are parabola. Also option II is correct because no egg is hyperbola and some ellipses are eggs. So, some ellipses are definitely not be hyperbola holds true good. Hence, both the options are correct.
The following question are given with some conclusions. Choose the options that logically follow the most.
Q 10 - Statements: Some towels are bed sheets. Some pillows are towels. All bed sheets are pillows.
Conclusions:
I. Some towels are pillows.
II. Some pillows are bed sheets.
III. Some bed sheets are towels.
Options:
Answer : D
Explanation
I is the opposite of the second statement, II is the opposite of the third statement and III is the opposite of the first statement and as such, all three of them follow.