Logical Deduction Questions

Pointing towards Aneesh, a woman said, "His mother is the only daughter of my mother." How is the woman related to Aneesh?

Pointing towards Aneesh, a woman said, "His mother is the only daughter of my mother." How is the woman related to Aneesh?

What is the missing number in the following sequence?
$$3,18,90,360,1080,2160,\underline{},0$$

Find the incorrect number in the following series:
$$1,12,144,1782,20736$$

Introducing a boy, a girl said, "He is the son of the daughter of the father of my uncle." How is the girl related to the boy?

Read the assumptions and select the best conclusion(s) that definitely follow(s) from the assumptions.
Assumptions:
I. Ajay is the father of Shreyas, Suraj is the brother of Shreyas.
II. Seema is the mother of Shreyas.

Conclusions:

1. Seema is the wife of Ajay.
2. Seema is the mother of Suraj.

Identify the incorrect number in the following series:
$$12,10,6,1,-8,-18$$

All X-brand cars parked here are white.
Some of them have radial tyres.
All X-brand cars manufactured after 1986 have radial tyres.
All cars are not X-brand.

Which one of the following conclusions can be drawn from the above statements?

If $A+B>C+D$ and $B+C>A+D$, then it is definite that

Choose the correct option based on the logical proposition: "Many smokers get cancer."

Consider the given statements and conclusions. Choose the option that logically follows from the statements.
Statements:

* No layer is a coat.
* All coats are deposits.
* All deposits are sheets.

Conclusions:
I. All coats are sheets.
II. All deposits can never be layer.

Monica, Amar, Akbar and Anthony live in four apartments that are arranged side by side. Only one of the four persons is the landlord whose apartment is at one end. Amar's apartment is neither next to Monica's apartment nor next to Akbar's apartment. Monica's apartment is not at one end. Amar is not the landlord. Monica lives:

Direction: Suppose the day after tomorrow is NOT Saturday.
Which of the following day CANNOT be the day after yesterday?

Suppose the day after tomorrow is NOT Saturday. Which of the following days CANNOT be the day before yesterday?

Monica, Amar, Akbar and Anthony live in four apartments that are arranged side by side. Only one of the four persons is the landlord whose apartment is at one end. Amar's apartment is neither next to Monica's apartment nor next to Akbar's apartment. Monica's apartment is not at one end. Amar is not the landlord. Who is the landlord?

Given the statement: "If a person is rich, he has a lot of influence." Choose the logically valid deduction.

Four cards are placed on a table. Each card has a number on one side and a letter on the other. The cards on display show $3$, $8$, $\text{E}$ and $\text{K}$. Which cards must be turned over to satisfy our requirement?
"If a card has a vowel on one side, then it has an even number on the other side."

Direction: Study the given information carefully and answer the question that follows:
(i) A, B, C, D, E, F and G are sitting on a wall and all of them are facing east.
(ii) C is on the immediate right of D.
(iii) B is at an extreme end and has E as his neighbour.
(iv) G is between E and F.
(v) D is sitting third from the south end.

Immediately between which of the following pairs of people is D sitting?

Direction: Study the given information carefully and answer the question that follows:
(i) A, B, C, D, E, F and G are sitting on a wall and all of them are facing east.
(ii) C is on the immediate right of D.
(iii) B is at an extreme end and has E as his neighbour.
(iv) G is between E and F.
(v) D is sitting third from the south end.

Who is sitting to the right of E?

It is observed that children of successful and well-to-do parents sometimes do not perform well in studies. Which one of the following alternatives offers a logical underlying reason behind it?

Direction: Study the given information carefully and answer the question that follows:
(i) A, B, C, D, E, F and G are sitting on a wall and all of them are facing east.
(ii) C is on the immediate right of D.
(iii) B is at an extreme end and has E as his neighbour.
(iv) G is between E and F.
(v) D is sitting third from the south end.

Which of the following pairs of people are sitting at the extreme ends?

A is $3$ years younger than C but one year older than D. D is one year older than B but $4$ years younger than C. C is $15$ years old. What is the age of B in years?

Given below are two statements, followed by three conclusions, I, II and III. You have to consider the statements to be true even if they seem to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, support(s) the given statements.
Statement 1: All the books written by X are textbooks.
Statement 2: Some of his books are published by ABC Publishing Company.
Conclusion I: ABC Publishing Company publishes textbooks only.
Conclusion II: Some textbooks written by X are published by publishers other than ABC Publishing Company.
Conclusion III: ABC Publishing Company publishes some critical theories written by X.

Read the instructions below carefully:
* $MN$ means $M$ is the sister of $N$.
* $M-N$ means $M$ is the brother of $N$.
* $M\times N$ means $M$ is the daughter of $N$.

(Note: Based on standard notation variations, assume '$+$ ' indicates parentage like '$Z+Y$ ' where $Z$ is the mother/parent of $Y$). Which of the following shows the relation that $X$ is the maternal uncle of $Y$, where $X$ 's gender is male?

The statements below are followed by two conclusions labelled I and II. Assuming that the information in the statements is true, even if it appears at variance with generally established facts, decide which conclusion(s) logically and definitely follow(s) from the information given in the statements
Statements:

All customers are clients.

All clients are medicines.
Conclusion:
I. Some medicines are customers.
II. Some medicines are clients.

Identify the correct option regarding the Statements and Conclusions given:
Statements:
I. All pets are dogs.
II. All dogs are cats.
Conclusions:
I. All pets are cats.
II. All cats are pets.