Logical Reasoning for Competitive Exam Success

Logical Reasoning

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 a computer is infected with a virus, it may slow down. What is the effect of a virus infection?

A. The computer speeds up
B. The computer slows down
C. The computer becomes more secure
D. The computer works normally

Solution

A virus infection causes the computer to slow down.

Correct Answer: B — The computer slows down

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Q. If a computer is infected with a virus, it will slow down. What is the effect of a virus on a computer?

A. The computer will speed up
B. The computer will slow down
C. The computer will shut down
D. The computer will work normally

Solution

A virus typically causes a computer to slow down.

Correct Answer: B — The computer will slow down

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Q. If a computer is not updated, it may become vulnerable to attacks. What is the effect of not updating a computer?

A. It becomes more secure
B. It may become vulnerable to attacks
C. It will run faster
D. It will use less power

Solution

Not updating a computer can lead to vulnerabilities.

Correct Answer: B — It may become vulnerable to attacks

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Q. If a fire alarm goes off, people evacuate the building. What is the effect of the fire alarm going off?

A. People ignore it
B. People evacuate the building
C. People stay inside
D. People call the police

Solution

The fire alarm going off causes people to evacuate.

Correct Answer: B — People evacuate the building

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Q. If a fire alarm goes off, people evacuate the building. What is the effect of the fire alarm?

A. People ignore it
B. People evacuate the building
C. People stay inside
D. People call the police

Solution

The fire alarm causes people to evacuate.

Correct Answer: B — People evacuate the building

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Q. If a fire alarm goes off, people will evacuate the building. What is the effect of the fire alarm?

A. People will ignore it
B. People will evacuate
C. People will stay inside
D. People will call the police

Solution

The fire alarm causes people to evacuate the building.

Correct Answer: B — People will evacuate

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Q. If A is a brother of B and C is a sister of B, how is C related to A?

A. Sister
B. Brother
C. Cousin
D. Cannot be determined

Solution

C is the sister of A.

Correct Answer: A — Sister

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Q. If A is a brother of B and C is a sister of B, what is the relationship between A and C?

A. Brother and sister
B. Siblings
C. Cousins
D. Unrelated

Solution

A and C are siblings as they share the same parents.

Correct Answer: B — Siblings

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Q. If A is a brother of B and C is a sister of B, what is the relationship of A to C?

A. Brother
B. Sister
C. Cousin
D. Cannot be determined

Solution

A is a brother of B, and C is a sister of B, so A is also a brother of C.

Correct Answer: A — Brother

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Q. If A is a doctor and B is a lawyer, which of the following can be inferred?

A. A is not a lawyer.
B. B is not a doctor.
C. Both A and B are professionals.
D. A and B are the same profession.

Solution

Both A and B hold different professions, thus they are both professionals.

Correct Answer: C — Both A and B are professionals.

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Q. If A is taller than B and B is shorter than C, which of the following is true?

A. A is shorter than C.
B. C is taller than A.
C. B is taller than A.
D. C is taller than A.

Solution

Since A is taller than B and B is shorter than C, it follows that C must be taller than A.

Correct Answer: D — C is taller than A.

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Q. If A is taller than B and B is shorter than C, which of the following statements is true?

A. A is shorter than C.
B. C is taller than A.
C. B is taller than A.
D. C is taller than A.

Solution

Since A is taller than B and B is shorter than C, it logically follows that C must be taller than A.

Correct Answer: D — C is taller than A.

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Q. If A is taller than B, and B is taller than C, who is the shortest?

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

Solution

Since A > B and B > C, C is the shortest.

Correct Answer: C — C

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Q. If A is the brother of B and C is the sister of B, what is the relationship between A and C?

A. Brother
B. Sister
C. Sibling
D. Cannot be determined

Solution

A and C are siblings since they share the same parents.

Correct Answer: C — Sibling

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Q. If A is the brother of B, and B is the sister of C, what is the relationship of A to C?

A. Brother
B. Sister
C. Sibling
D. Cannot be determined

Solution

A is the brother of B, and B is the sister of C, so A is a sibling of C.

Correct Answer: C — Sibling

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Q. If A is the sister of B and B is the brother of C, how is A related to C?

A. Sister
B. Brother
C. Cousin
D. Aunt

Solution

A is the sister of B, and since B is the brother of C, A is also the sister of C.

Correct Answer: A — Sister

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Q. If A is to B as C is to D, and A is larger than B, what can we conclude about C and D?

A. C is larger than D
B. C is smaller than D
C. C is equal to D
D. Cannot be determined

Solution

The relationship between A and B does not provide information about the relationship between C and D.

Correct Answer: D — Cannot be determined

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Q. If A is to the north of B and C is to the east of B, where is A in relation to C?

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

Solution

If A is north of B and C is east of B, then A is to the northwest of C.

Correct Answer: A — North

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Q. If a man is facing north and turns 90 degrees to his right, then 180 degrees to his left, which direction is he facing now?

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

Solution

Right turn to East, left turn to South.

Correct Answer: C — South

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Q. If a man walks 5 km north, then 3 km east, and finally 5 km south, where is he now?

A. 5 km East
B. 3 km East
C. 2 km North
D. 5 km North

Solution

He ends up 3 km East of his starting point.

Correct Answer: B — 3 km East

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Q. If a man walks 5 km north, then 3 km east, and finally 5 km south, where is he now relative to his starting point?

A. 5 km North
B. 3 km East
C. 2 km South
D. At the starting point

Solution

He ends up 2 km south of his starting point after the movements.

Correct Answer: C — 2 km South

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Q. If a man walks 5 km towards the north and then turns east and walks 3 km, how far is he from the starting point?

A. 5 km
B. 8 km
C. 7 km
D. 6 km

Solution

Using Pythagorean theorem: distance = √(5^2 + 3^2) = √34 ≈ 8 km.

Correct Answer: B — 8 km

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Q. If a man walks 5 km towards the north and then turns right and walks 3 km, in which direction is he now?

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

Solution

After walking north and then turning right, he is walking east.

Correct Answer: B — East

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Q. If a person does not get enough sleep, they feel tired. What is the effect of insufficient sleep?

A. They feel energetic
B. They feel tired
C. They feel happy
D. They feel alert

Solution

Lack of sleep results in feelings of tiredness.

Correct Answer: B — They feel tired

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Q. If a person does not get enough sleep, they may feel tired. What is the effect of insufficient sleep?

A. They feel energetic
B. They feel tired
C. They feel happy
D. They feel alert

Solution

Insufficient sleep leads to feelings of tiredness.

Correct Answer: B — They feel tired

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Q. If a person does not get enough sleep, they will feel tired. What is the effect of insufficient sleep?

A. Feeling energized
B. Feeling tired
C. Feeling alert
D. Feeling happy

Solution

Not getting enough sleep leads to feeling tired.

Correct Answer: B — Feeling tired

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Q. If a person eats too much sugar, they may develop health issues. What is the effect of excessive sugar consumption?

A. Improved health
B. Development of health issues
C. Increased energy
D. Better sleep

Solution

Eating too much sugar can lead to health issues.

Correct Answer: B — Development of health issues

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Q. If a person eats too much sugar, they may develop health issues. What is the effect of eating too much sugar?

A. They become healthier
B. They develop health issues
C. They lose weight
D. They feel energetic

Solution

Eating too much sugar can lead to health issues.

Correct Answer: B — They develop health issues

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Q. If a person eats too much sugar, they may gain weight. What is the effect of consuming too much sugar?

A. Weight loss
B. Weight gain
C. No change in weight
D. Increased energy

Solution

Eating too much sugar can lead to weight gain.

Correct Answer: B — Weight gain

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Q. If a person eats too much sugar, they may gain weight. What is the effect of eating too much sugar?

A. They lose weight
B. They gain weight
C. They feel energetic
D. They become healthier

Solution

Excessive sugar intake can lead to weight gain.

Correct Answer: B — They gain weight

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Logical Reasoning

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