Logical Reasoning Questions with Answers

Answer questions 1 to 5 on the basis of the information given below.
K, L, M, N, P, Q, R, S, U and W are the only ten members in a department. There is a proposal to form a team from within the members of the department, subject to the following conditions:

• A team must include exactly one among P, R, and S.
• A team must include either M or Q, but not both.
• If a team includes K, then it must also include L, and vice versa.
• If a team includes one among S, U, and W, then it must also include the other two.CAT 2006
• L and N cannot be members of the same team.
• L and U cannot be members of the same team.
• The size of a team is defined as the number of members in the team.

1. What could be the size of a team that includes K?
a. 2 or 3
b. 2 or 4
c. 3 or 4
d. Only 2
e. Only 4
Ans. e. As K is included, L is included. So, N and U cannot be included. As U is not included, S and W are not included. One out of M and Q and one out of P and R will be included.
Thus, the team will include: K, L, (M or Q) and (P or R).
Hence, option e.

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LOGICAL REASONING and CAT

Well before we discuss logical reasoning and its relation with CAT. Let us just gather some information about logical reasoning before we talk about LR and CAT.

Types of logical reasoning

1. Deduction
2. Abduction
3. Induction

Deduction refers to the logical reasoning associated with determining the conclusion of a given statement.

Abduction refers to analyzing the conclusion that has been provided. Based on the conclusion we have to determine the precondition.

Induction is the method of learning based on a series of examples.

These are the general rules of Logical reasoning. Now coming into the section of your interest CAT and logical reasoning.

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Tags: CAT, CAT Tips and Tricks, Logical Reasoning, LOGICAL REASONING For CAT, Logical Reasoning Tips

Best Logical Reasoning Books

Reasoning, both mathematical and analytical, probes deep into your logical mind and your ability to comprehend and synthesize the given information. Evaluating various possibilities out of the given information is also essential to derive necessary conclusions.

Here I am trying to compile a list of some of the best books related to logical thinking, data interpretation, data sufficiency and analytical reasoning. What distinguishes these books from the rest is their easy-to-understand format and simple approach to complex problems. I feel that the following books will be really helpful for students who are preparing for Competitive Examinations like CAT, GMAT, GRE or any other.

Feel free to suggest any book which you want to be included in this list. I am also putting Flipkart.com link for each book. Each book is an investment for lifetime. I always order these books online to get free home delivery and to get good discounts on listed price. What more does one need?

List of Best Logical Reasoning Books

I think each book in this list is written in very lucid language and is superb source of knowledge. These books can surely change your conventional approach to reasoning problems.

Click on the “Buy Online” link to read summary and reviews of any book in this list –

1. How To Prepare For Data Interpretation And Logical Reasoning For The Cat by Arun Sharma - Buy Online

2. Pearson Guide To Logical Reasoning & Data Interpretation For The Cat by Nishit K Sinha – Buy Online

3. A Modern Approach To Logical Reasoning by R. S. Aggarwal – Buy Online

4. Logical Reasoning: Test Preparation Study Guide, Questions & Answers by National Learning Corporation – Buy Online

5. Management Entrance Analytical & Logical Reasoning by Bs Sijwali, Ajay Singh – Buy Online

6. LSAT Logical Reasoning Bible: A Comprehensive System For Attacking The Logical Reasoning Section Of The LSAT by David M. Killoran – Buy Online

Tags: books for logical reasoning, Logical Reasoning, logical reasoning bible

Mathematics Puzzle

Hello Friends,

Today I am giving you a very interesting puzzle.  This is not a very simple puzzle. You have to use your gray cells to answer this. You have to face similar problems in your Logical Reasoning part of CAT.  Don’t look at the existing answers (in comments), if there is any. Try it yourself

Puzzle

At a census there is the following dialog:

Field helper: number of children?

Citizen: three!

Field helper: age of Your children in whole numbers?

Citizen: The product of the years is 36.

Field helper: This not a sufficent answer!

Citizen: The sum of the ages equals the

number of the house of our next neighbour.

(Field helper acquires the number.)

Field helper: That is still not a sufficient answer!

Citizen: Our eldest child plays the piano.

Field helper: (after some mental calculations) – Fine, now I know the age of your three children. But it would not have been possible without the last clue.

How old are the three children?

Leave your answers below -

Tags: Logical Reasoning, mathematics puzzle

Logical Reasoning – fireup.co.in

Directions for next 3 logical reasoning questions: Refer to the data below and answer the logical reasoning questions that follow.

3 Frineds, Ajay, Biru and Chinku took the GRE test on different dates of November. The test is conducted on 9th, 16th & 25th of November. They scored 2000, 2010 and 2150 not necessarily in order. There are 3 test centers, Allahabad, Delhi and Mumbai, and all 3 went to different centers.
The information available are:
(i) The one who went to Delhi did not score the minimum among the three.
(ii) Mumbai center conducted the test on 9th.
(iii) Ajay did not took the test last.
(iv) Chinku, who went to Allahabad, scored 2150.
(v) Delhi center did not conduct the test on 16th.

1. Who took the test at Delhi?
a. Ajay
b. Biru
c. Chinku
d. Data Insufficient

2. Who took the test on 9th of November?
a. Ajay
b. Biru
c. Chinku
d. Data Insufficient

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Logical Reasoning – fireup.co.in

Logical Reasoning- Directions for next 5 Logical Reasoning Questions: Refer to the data below and answer the logical reasoning questions that follow.

A, B, C, D, E, F and G are the seven members of a family. There are two married couples and two children in the 3^rd generation.
G is B’s mother.
D is E’s mother.
F is C’s son.
B is E’s Aunt.

1. How is D related to B?
a. sister
b. sister-in-law
c. mother
d. cannot be determined

2. If C B’s husband, how is F related to E?
a. brother
b. sister
c. cousin
d. cannot be determined

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Tags: Logical Reasoning, Sample Logical Reasoning

Logical & Aptitude Interview Questions and Answers – fireup

Logical & Aptitude Interview Questions and Answers – Directions for next 3 Logical reasoning questions: Answer the logical reasoning questions based on the passage below.

A group of three or four has to be selected from seven persons. Among the seven are two women, Meena and Teena, and five men: Rajesh, Samuel, Daniel, Arun and Santosh. Rajesh would not like to be in the group if Samuel is also selected. Samuel and Santosh want to be selected together in the group. Teena would like to be in the group only if Daniel is also there. Daniel, if selected, would not like Arun in the group. Rajesh would like to be in the group only if Arun is also there. David insists that Meena be selected in case he is there in the group.

1. Which of the following statements is true?
a. Teena and Rajesh can be part of a group of four.
b. A group of four can have two women.
c. A group of four can have all four men.
d. None of the above

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Logical Reasoning vs. Lateral Thinking

LATERAL THINKING

Lateral thinking is an idea generation and problem solving technique in which new concepts are created by looking at things in novel ways. The term was coined by Dr. Edward de Bono in his 1970 book ‘Lateral Thinking.’“You cannot look in a new direction by looking harder in the same direction” - Edward de Bono

Difference between Logical Reasoning and Lateral thinking

Lateral thinking is not a substitute for Logical reasoning. Both are required. During brainstorming meetings, you encourage lateral thinking during the first session to generate as much creative solutions as possible, and logical thinking during the second session to select the feasible ideas.

Logical (vertical) thinking carries a chosen idea forward. Lateral thinking provokes fresh ideas or changes the frame of reference

Vertical thinking tries to overcome problems by meeting them head-on. Lateral thinking tries to bypass them through a radically different approach

Lateral thinking is not a substitute for Logical reasoning. Both are required. During brainstorming meetings, you encourage lateral thinking during the first session to generate as much creative solutions as possible, and logical thinking during the second session to select the feasible ideas.

Parallel thinking espouses the idea that we must organize our thinking and should not allow our thought to wander around. Parallel Thinking ensures we do only one sort of thinking at a time and the six different colored hats of Six Thinking Hats allows us to wear one hat at a time, each representing different modes of thought:

1. White Hat – Gathers needed and known information

2. Red Hat – Expression of feelings, emotions, hunches and intuitive thoughts

3. Yellow Hat – Expresses values, feasibility and the benefits to the situation/idea at hand

4. Green Hat – Generates alternatives and explores creative ideas

5. Black Hat – Focuses on the cautions and difficulties that may arise with an idea

6. Blue Hat – Manages the framework of the thinking process

Tags: edward de bono, Lateral thinking, Logical Reasoning, mind power, Parallel thinking, six thinking hats