If all students are learners, and some learners are teachers, then which statement is definitely true?

The correct answer is D: Some learners are not teachers. All students are learners (Students ⊆ Learners). Some learners are teachers means not all learners are teachers. Therefore, some learners are not teachers. This is definitely true.

DOCTOR is to HOSPITAL as JUDGE is to:

The correct answer is B: Court. A doctor works in a hospital; a judge works in a court. Functional relationship.

Amit starts walking from point A towards North. After walking 10 km, he turns right and walks 5 km. Then he turns left and walks 8 km. Finally, he turns right and walks 3 km to reach point B. In which direction is point B with respect to point A?

The correct answer is A: North-East. Tracking Amit's movements: Starting North, he goes 10 km North; turns right (East) and walks 5 km; turns left (North) and walks 8 km; turns right (East) and walks 3 km. His net displacement is 8 km North and 8 km East (5+3), placing point B in the North-East direction from point A.

APPLE is to FRUIT as CARROT is to ?

The correct answer is A: VEGETABLE. Apple is a type of fruit. Carrot is a type of vegetable. The relationship is part-to-whole category classification.

Some players are champions. All champions are confident. Can we conclude all players are confident?

The correct answer is B: No, we cannot. Only some players are champions. We cannot conclude all players are confident as not all players are necessarily champions.

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Reasoning Ability

Critical thinking and logical reasoning questions

248 Q 8 Topics Take Mock Test

Difficulty: All Easy Medium Hard 101–110 of 248

Topics in Reasoning Ability

All Puzzles & Seating Arrangement 172 Syllogism 50 Coding-Decoding 50 Blood Relations 50 Direction & Distance 50 Inequalities 50 Series & Analogies 50 Ranking & Order 50

Q.101 Medium Blood Relations

Statements: All engineers are logical. Some logical people are creative. Conclusion: All engineers are creative. Is this valid?

A Valid

B Invalid

C Cannot determine

D Partially valid

Correct Answer: B. Invalid

EXPLANATION

Being logical doesn't guarantee being creative. Some logical people are creative doesn't extend to all engineers.

Test

Q.102 Medium Blood Relations

Five people P, Q, R, S, T are sitting in a row. R is in the middle. P and Q are on the left of R. T is to the right of R. S is between Q and R. Who is sitting second from the left?

A Q

B S

C R

D P

Correct Answer: A. Q

EXPLANATION

Order: P-Q-S-R-T. Second from left is Q.

Test

Q.103 Medium Blood Relations

If MOUNTAIN = 13-15-21-14-20-1-9-14, how many letters in the code have odd position values?

A 3

B 4

C 5

D 6

Correct Answer: C. 5

EXPLANATION

Odd values: 13(M), 21(U), 15(O), 1(A), 9(I) = 5 letters with odd position values.

Test

Q.104 Medium Blood Relations

In a family, X is the sister of Y. Y is the brother of Z. Z is the father of W. How is X related to W?

A Aunt

B Grandmother

C Mother

D Sister

Correct Answer: A. Aunt

EXPLANATION

X is sister of Y. Y is brother of Z (so Z is also sibling of X). Z is father of W. Therefore, X is aunt of W.

Test

Q.105 Medium Blood Relations

All smartphones are electronic devices. Some electronic devices are expensive. Conclusion: Some smartphones are expensive. Is this conclusion valid?

A Valid

B Invalid

C Cannot be determined

D Partially valid

Correct Answer: B. Invalid

EXPLANATION

The conclusion does not follow logically. Some electronic devices being expensive doesn't guarantee smartphones are included in that some.

Test

Q.106 Medium Blood Relations

In a family, there are 6 members: A, B, C, D, E, F. A is married to B. C and D are children of A and B. E is married to C. F is the child of C and E. Who is the mother-in-law of E?

A A

B B

C C

D F

Correct Answer: B. B

EXPLANATION

E is married to C. C is the child of A and B. B is the mother of C. Therefore, B is the mother-in-law of E.

Test

Q.107 Medium Blood Relations

Statement: All doctors are professionals. Some professionals are not ethical. Conclusion: Some doctors are not ethical.

A Definitely true

B Definitely false

C Cannot be determined

D Possibly true

Correct Answer: C. Cannot be determined

EXPLANATION

All doctors are professionals (given). Some professionals are not ethical (given). But it's possible that the unethical professionals are not doctors. Conclusion cannot be determined.

Test

Q.108 Medium Blood Relations

If all roses are flowers, and some flowers are red, which of the following must be true?

A All roses are red

B Some roses are red

C No roses are red

D We cannot determine if any roses are red

Correct Answer: D. We cannot determine if any roses are red

EXPLANATION

All roses are flowers (true). Some flowers are red (true). But this doesn't guarantee roses are among those red flowers.

Test

Q.109 Medium Blood Relations

Pointing to a photograph, Arun said, 'He is the son of my mother's only son.' Who is the person in the photograph?

A Arun's father

B Arun himself

C Arun's son

D Arun's brother

Correct Answer: C. Arun's son

EXPLANATION

My mother's only son = myself (Arun). So the person is the son of Arun = Arun's son.

Test

Q.110 Medium Blood Relations

In a family of five members, P is the father of Q and R. Q is the mother of S. T is the brother of P. How many males are there in the family?

A 2

B 3

C 4

D Cannot be determined

Correct Answer: D. Cannot be determined

EXPLANATION

P is male (father). T is male (brother). R's gender unclear. S's gender unclear. Q is female (mother). Insufficient information.

Test

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