Logical Deduction Online Quiz

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 lovers are singers. All film directors are lovers

Conclusions:

I. All film directors are singers.

II. Some lovers are film directors.

Options:

Answer : E

Explanation

Since both the statements are broad and affirmative, the conclusion must be broad affirmative and should not contain the intermediate term. So, conclusion I is valid. Conclusion II is the opposite of the second statement and so 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 3 - Statements: Some cold drinks are toxic. Some toxic are hazardous.

Conclusions:

I. All cold drinks are hazardous.

II. No cold drinks are hazardous.

Options:

Answer : C

Explanation

We are not sure whether all cold drinks are hazardous is true or no cold drinks are hazardous is true but the chances of occurrence of both the options is equally likely hence, 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 4 - Statements: Some books are bibles. Some bibles are mirrors.

Conclusions:

I. Some mirrors are books.

II. No book is mirror.

Options:

Answer : C

Explanation

Both the statements are particular so no definite conclusion is valid. Here occurrence of both the conclusions is equally likely. 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 5 - Statements: All scientists are fair. All fair persons are strong.

Conclusions:

I. All scientists are strong.

II. Some strong peoples are fair.

Options:

A - Only conclusion I is correct..

Answer : E

Explanation

As all scientists are fair and all fair persons are strong, all scientists are fair and strong indeed. So statement I holds true. Similarly as all fair persons are strong that means some strong persons are fair. Hence conclusion II also holds true.

In each of 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 hunks are girls. Some girls are writers.

Conclusions:

I. All girls are hunks.

II. Some girls are not writers.

Options:

B - Only conclusion II is correct..

C - Either I or II is correct..

Answer : D

Explanation

Since both the conclusions 1 and 2 contain the intermediate term 'girls', so none of them can 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: All bakes are cakes. All lamps are cakes.

Conclusions:

I. Some lamps are bakes.

II. No lamp is bakes.

Options:

Answer : C

Explanation

Either I or II is correct. Hence, option C is chosen.

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 tigers are cats. No bird is cat. Some camels are birds.

Conclusions:

I. Some birds are tigers.

II. There is possibility that some cats are camels.

Options:

Answer : B

Explanation

Some birds are tigers is not true. But surely there is possibility that some cats are camels. 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 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: