Logical Reasoning for Competitive Exam Success

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Logical Reasoning

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Logical Reasoning MCQ & Objective Questions

Logical reasoning is a crucial skill that plays a significant role in various exams. Mastering logical reasoning can enhance your problem-solving abilities and boost your confidence during tests. Practicing MCQs and objective questions in this area not only helps in understanding concepts but also prepares you to tackle important questions effectively, leading to better scores in your exams.

What You Will Practise Here

Analytical reasoning techniques
Logical sequences and patterns
Deductive and inductive reasoning
Critical thinking and argument analysis
Data interpretation and logical puzzles
Venn diagrams and their applications
Common logical fallacies and how to avoid them

Exam Relevance

Logical reasoning is a vital component in various examinations, including CBSE, State Boards, NEET, and JEE. In these exams, you can expect questions that assess your ability to analyze information, draw conclusions, and solve problems logically. Common question patterns include identifying logical relationships, solving puzzles, and interpreting data, making it essential to practice logical reasoning MCQ questions to excel.

Common Mistakes Students Make

Overlooking key details in the questions
Confusing similar logical patterns
Rushing through problems without careful analysis
Neglecting to practice with a variety of question types

FAQs

Question: What are some effective strategies for solving logical reasoning MCQs?
Answer: Break down the question, identify keywords, and eliminate clearly wrong options to improve your chances of selecting the correct answer.

Question: How can I improve my logical reasoning skills?
Answer: Regular practice with logical reasoning objective questions and reviewing explanations for both correct and incorrect answers can significantly enhance your skills.

Start your journey towards mastering logical reasoning today! Solve practice MCQs to test your understanding and boost your exam preparation. Remember, consistent practice is the key to success!

Analogies Analyzing Arguments Artificial Language Cause and Effect Course of Action Essential Part Letter and Symbol Series Logical Deduction Logical Games Logical Problems Making Judgments Matching Definitions Number Series Statement and Argument Statement and Assumption Statement and Conclusion Theme Detection Verbal Classification Verbal Reasoning

Q. If the code for 'WATER' is 'XBTUS', what is the code for 'FIRE'?

A. GJTF
B. GJTE
C. GJTG
D. GJTH

Solution

Each letter is shifted by +1; F->G, I->J, R->T, E->F.

Correct Answer: A — GJTF

Q. If the day after tomorrow is Friday, what day is today?

A. Monday
B. Tuesday
C. Wednesday
D. Thursday

Solution

If the day after tomorrow is Friday, then today is Tuesday.

Correct Answer: B — Tuesday

Q. If the day after tomorrow is Saturday, what day is today?

A. Friday
B. Thursday
C. Wednesday
D. Tuesday

Solution

If the day after tomorrow is Saturday, then today must be Thursday.

Correct Answer: B — Thursday

Q. If the day before yesterday was Friday, what day will it be in three days?

A. Monday
B. Tuesday
C. Wednesday
D. Thursday

Solution

If the day before yesterday was Friday, then today is Sunday. Three days from Sunday is Wednesday.

Correct Answer: C — Wednesday

Q. If the day before yesterday was Monday, what day will it be in three days?

A. Wednesday
B. Thursday
C. Friday
D. Saturday

Solution

If the day before yesterday was Monday, then yesterday was Tuesday, today is Wednesday, and in three days it will be Thursday.

Correct Answer: B — Thursday

Q. If the day before yesterday was Monday, what day will it be tomorrow?

A. Tuesday
B. Wednesday
C. Thursday
D. Friday

Solution

If the day before yesterday was Monday, then today is Wednesday, making tomorrow Thursday.

Correct Answer: B — Wednesday

Q. If the day before yesterday was Wednesday, what day will it be tomorrow?

A. Friday
B. Saturday
C. Sunday
D. Monday

Solution

If today is Friday, then tomorrow is Saturday.

Correct Answer: B — Saturday

Q. If the first two statements are true, is the conclusion true? 1. All dogs are animals. 2. Some animals are cats. Conclusion: Some dogs are cats.

A. True
B. False
C. Cannot be determined
D. Only if they are friends

Solution

The conclusion is false as it does not logically follow from the premises.

Correct Answer: B — False

Q. If the first two statements are true, is the final statement true? 'All cats are animals. Some animals are dogs. Therefore, some cats are dogs.'

A. True
B. False
C. Cannot be determined
D. None of the above

Solution

The conclusion does not logically follow from the premises.

Correct Answer: B — False

Q. If the first two statements are true, is the final statement true? 1. All birds can fly. 2. Penguins are birds. 3. Penguins can fly.

A. True
B. False
C. Cannot be determined
D. All birds cannot fly

Solution

The first statement is false as not all birds can fly, thus the conclusion about penguins is also false.

Correct Answer: B — False

Q. If the first two statements are true, is the final statement true? 1. All cats are animals. 2. Some animals are dogs. 3. Some cats are dogs.

A. True
B. False
C. Cannot be determined
D. None of the above

Solution

The statements do not provide a direct relationship between cats and dogs.

Correct Answer: C — Cannot be determined

Q. If the first two statements are true, is the final statement true? 1. All cats are mammals. 2. Some mammals are not dogs. 3. Therefore, some cats are not dogs.

A. True
B. False
C. Cannot be determined
D. Only if stated

Solution

Since all cats are mammals and some mammals are not dogs, it follows that some cats are not dogs.

Correct Answer: A — True

Q. If the first two statements are true, is the final statement true? 1. All roses are flowers. 2. Some flowers fade quickly. 3. Therefore, some roses fade quickly.

A. True
B. False
C. Cannot be determined
D. Only if specified

Solution

The first two statements do not provide enough information to conclude anything about roses fading quickly.

Correct Answer: C — Cannot be determined

Q. If the letters in 'LEMON' are rearranged, which of the following is NOT a valid word?

A. MELON
B. NOME
C. LONE
D. MONE

Solution

'MONE' is not a valid English word, while the others are valid rearrangements of 'LEMON'.

Correct Answer: D — MONE

Q. If the pattern is 1, 1, 2, 3, 5, 8, what is the next number?

A. 10
B. 11
C. 12
D. 13

Solution

The sequence is the Fibonacci sequence where each number is the sum of the two preceding ones: 5 + 8 = 13.

Correct Answer: D — 13

Q. If the pattern is 1, 1, 2, 3, 5, what is the next number?

A. 7
B. 8
C. 9
D. 10

Solution

The pattern follows the Fibonacci sequence where the next number is the sum of the two preceding numbers: 3 + 5 = 8.

Correct Answer: B — 8

Q. If the pattern is 3, 6, 11, 18, what is the next number?

A. 25
B. 26
C. 27
D. 28

Solution

The differences between the numbers are 3, 5, 7, which increases by 2 each time. The next difference is 9, so 18 + 9 = 27.

Correct Answer: B — 26

Q. If the pattern is 5, 10, 20, 40, what is the next number?

A. 50
B. 60
C. 80
D. 100

Solution

The pattern is doubling each time: 5*2=10, 10*2=20, 20*2=40, so the next number is 40*2=80.

Correct Answer: C — 80

Q. If the pattern is A1, B2, C3, what comes next?

A. D4
B. E5
C. F6
D. G7

Solution

The pattern alternates letters and numbers sequentially, so the next is D4.

Correct Answer: A — D4

Q. If the sequence is 2, 4, 8, 16, what is the next number?

A. 20
B. 24
C. 32
D. 36

Solution

The sequence is doubling each time: 2*2=4, 4*2=8, 8*2=16, so the next number is 16*2=32.

Correct Answer: C — 32

Q. If the sequence is 5, 10, 20, 40, what is the next number?

A. 50
B. 60
C. 80
D. 100

Solution

The pattern is doubling each time: 5*2=10, 10*2=20, 20*2=40, so 40*2=80.

Correct Answer: C — 80

Q. If the word 'PENCIL' is written as 'QFODJM', what is the code for 'BOOK'?

A. CPLP
B. CPLQ
C. CPLR
D. CPLS

Solution

Each letter is shifted by +1: B->C, O->P, O->P, K->L.

Correct Answer: A — CPLP

Q. If you face north and turn 90 degrees clockwise, then 180 degrees counterclockwise, which direction are you facing?

A. North
B. East
C. South
D. West

Solution

Facing north, turning 90 degrees clockwise faces you east, then 180 degrees counterclockwise returns you to north.

Correct Answer: A — North

Q. If you face north and turn 90 degrees to your right, then 180 degrees to your left, which direction are you facing?

A. North
B. East
C. South
D. West

Solution

Facing north, right turn to east, left turn 180 degrees to south.

Correct Answer: C — South

Q. If you face north and turn 90 degrees to your right, then 180 degrees to your left, which direction are you facing now?

A. North
B. East
C. South
D. West

Solution

Facing north, turning right to east, then left 180 degrees leads to south.

Correct Answer: C — South

Q. In a certain code language, '123' means 'cat is cute', '234' means 'dog is cute', and '345' means 'dog is big'. What does '2' represent?

A. dog
B. cat
C. is
D. cute

Solution

'2' appears in both '234' and '123', but since '123' has 'cat' and '234' has 'dog', '2' must represent 'dog'.

Correct Answer: A — dog

Q. In a certain code language, '123' means 'cat is cute', '234' means 'dog is cute', and '345' means 'dog is friendly'. What does '2' represent?

A. dog
B. cat
C. is
D. cute

Solution

'2' appears in both '234' and '123', but since '123' has 'cat' and '234' has 'dog', '2' must represent 'dog'.

Correct Answer: A — dog

Q. In a certain code language, '123' means 'cat', '234' means 'dog', and '345' means 'fish'. What does '234' mean?

A. cat
B. dog
C. fish
D. bird

Solution

'234' is explicitly defined to mean 'dog' in the code language.

Correct Answer: B — dog

Q. In a certain code language, '123' means 'cat', '234' means 'dog', and '345' means 'cat dog'. What does '1234' mean?

A. cat
B. dog
C. cat dog
D. Cannot be determined

Solution

The code '1234' includes both '123' and '234', but does not provide enough information to determine a specific meaning.

Correct Answer: D — Cannot be determined

Q. In a certain code language, 'DOG' is written as '5', 'CAT' is written as '6'. How is 'MOUSE' written?

A. 7
B. 8
C. 9
D. 10

Solution

The code is the number of letters in the word plus 2. 'MOUSE' has 5 letters, so 5 + 2 = 7.

Correct Answer: C — 9

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