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 person exercises regularly, they tend to lose weight. What is the effect of regular exercise?

A. They gain weight
B. They lose weight
C. They become tired
D. They eat more

Solution

Regular exercise leads to weight loss.

Correct Answer: B — They lose weight

Q. If a person is facing east and turns 90 degrees to the left, then 180 degrees to the right, which direction is he facing now?

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

Solution

Facing east and turning 90 degrees left means facing north. Turning 180 degrees right from north means facing south.

Correct Answer: B — South

Q. If a plant receives sunlight, it grows better. What is the effect of receiving sunlight?

A. The plant wilts
B. The plant grows better
C. The plant dies
D. The plant produces less oxygen

Solution

Receiving sunlight causes the plant to grow better.

Correct Answer: B — The plant grows better

Q. If a student studies hard, they are likely to pass the exam. What is the effect of studying hard?

A. They fail the exam
B. They pass the exam
C. They forget the material
D. They get distracted

Solution

Studying hard increases the likelihood of passing the exam.

Correct Answer: B — They pass the exam

Q. If a train leaves a station heading north at 60 km/h and another train leaves the same station heading south at 80 km/h, how far apart will they be after 2 hours?

A. 140 km
B. 160 km
C. 120 km
D. 100 km

Solution

In 2 hours, the first train travels 120 km (60 km/h * 2) and the second train travels 160 km (80 km/h * 2). The total distance apart is 120 km + 160 km = 280 km.

Correct Answer: B — 160 km

Q. If all cats are animals and some animals are not dogs, can we conclude that some cats are not dogs?

A. Yes
B. No
C. Cannot be determined
D. Only if specified

Solution

Since all cats are animals and some animals are not dogs, it follows that those cats that are part of the animals that are not dogs can be concluded as not being dogs.

Correct Answer: A — Yes

Q. If all cats are mammals and some mammals are not dogs, which of the following statements is true?

A. All cats are dogs.
B. Some cats are not dogs.
C. All mammals are cats.
D. Some dogs are cats.

Solution

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

Correct Answer: B — Some cats are not dogs.

Q. If all roses are flowers and some flowers fade quickly, can we conclude that some roses fade quickly?

A. Yes
B. No
C. Cannot be determined
D. Only if specified

Solution

The statement does not provide enough information to conclude that any roses specifically fade quickly.

Correct Answer: C — Cannot be determined

Q. If all roses are flowers and some flowers fade quickly, which of the following is true?

A. All roses fade quickly.
B. Some roses fade quickly.
C. No roses fade quickly.
D. Some flowers are not roses.

Solution

Since not all flowers are roses, it is possible that some flowers are not roses.

Correct Answer: D — Some flowers are not roses.

Q. If in a certain code, 'CAT' is written as '3120', how is 'DOG' written in that code?

A. 4150
B. 4152
C. 4151
D. 4153

Solution

In the code, each letter corresponds to its position in the alphabet: C=3, A=1, T=20. Therefore, D=4, O=15, G=7, so DOG is 4157.

Correct Answer: A — 4150

Q. If it rains heavily, the ground becomes wet. What is the effect of heavy rain?

A. The ground becomes dry
B. The ground becomes wet
C. The plants die
D. The sun shines

Solution

Heavy rain causes the ground to become wet.

Correct Answer: B — The ground becomes wet

Q. If the code for 'FISH' is 'GJTI', what is the code for 'BIRD'?

A. CJSF
B. CJSF
C. CJSF
D. CJSF

Solution

Each letter in 'FISH' is shifted by +1 to get 'GJTI'. Applying the same shift to 'BIRD', we get 'CJSF'.

Correct Answer: A — CJSF

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 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 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 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', '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, if 'FISH' is coded as 'GJTI', how is 'BIRD' coded?

A. CJSF
B. CJSI
C. CJTJ
D. CJSK

Solution

Each letter in 'FISH' is shifted by +1 to get 'GJTI'. Similarly, 'BIRD' becomes 'CJSF'.

Correct Answer: A — CJSF

Q. In a certain code, 'CIRCLE' is written as 'DJSFMD'. How is 'SQUARE' written in that code?

A. TROFBS
B. TROFAT
C. TROFCT
D. TROFDT

Solution

Each letter is shifted by +1: C->D, I->J, R->S, C->D, L->M, E->F. Therefore, S->T, Q->R, U->V, A->B, R->S, E->F, so SQUARE is TROFBS.

Correct Answer: A — TROFBS

Q. In a certain code, 'FISH' is written as 'GJTI'. How is 'BIRD' written in that code?

A. CJSF
B. CJSI
C. CJTJ
D. CJSK

Solution

Each letter is shifted by +1. B+1=C, I+1=J, R+1=S, D+1=F.

Correct Answer: A — CJSF

Q. In a certain code, 'PEN' is written as 'QFO'. How is 'PAPER' written in that code?

A. QBPFS
B. QBOFS
C. QBOES
D. QBOGS

Solution

Each letter is shifted by +1: P->Q, E->F, N->O. Therefore, PAPER becomes QBOFS.

Correct Answer: A — QBPFS

Q. In a certain language, 'FISH' is coded as 'GJTI'. How is 'BIRD' coded in that language?

A. CJSF
B. CJSI
C. CJTJ
D. CJSK

Solution

Each letter is shifted by +1: F->G, I->J, S->T, H->I. Therefore, B->C, I->J, R->S, D->E, so BIRD is coded as CJSF.

Correct Answer: A — CJSF

Q. In a family of six members A, B, C, D, E, and F, A is the father of B. C is the mother of B. D is the brother of B. E is the sister of B. F is the grandfather of B. How is D related to F?

A. Grandson
B. Granddaughter
C. Son
D. Daughter

Solution

D is the son of A and C, making him the grandson of F.

Correct Answer: A — Grandson

Q. Pencil is to Write as Brush is to ?

A. Paint
B. Draw
C. Sketch
D. Color

Solution

A pencil is used to write, while a brush is used to paint.

Correct Answer: A — Paint

Q. Tree is to Forest as Star is to ?

A. Sky
B. Galaxy
C. Planet
D. Moon

Solution

A tree is a single unit in a forest, just as a star is a single unit in a galaxy.

Correct Answer: B — Galaxy

Q. Which number should come next in the series: 1, 1, 2, 3, 5, ...?

A. 6
B. 7
C. 8
D. 9

Solution

This is the Fibonacci sequence where the next number is the sum of the two preceding ones: 3 + 5 = 8.

Correct Answer: A — 6

Q. Which of the following is the odd one out: 2, 3, 5, 7, 9?

A. 2
B. 3
C. 5
D. 9

Solution

All numbers except 9 are prime numbers.

Correct Answer: D — 9

Showing 31 to 58 of 58 (2 Pages)