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Reasoning Ability

Critical thinking and logical reasoning questions

88 Q 8 Topics Take Mock Test
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Difficulty: All Easy Medium Hard 41–50 of 88
Topics in Reasoning Ability
Q.41 Hard Coding-Decoding
In a circular arrangement of 8 people, if person A is at position 1 and person B is directly opposite, at what position is B?
A 3
B 4
C 5
D 6
Correct Answer:  C. 5
EXPLANATION

In a circle of 8, position 1 is opposite to position (1+8/2)=5. So B is at position 5.

Test
Q.42 Hard Coding-Decoding
Statement: All politicians are ambitious. Some ambitious people are corrupt. Conclusion: Some politicians are corrupt.
A The conclusion follows
B The conclusion does not follow
C Data is insufficient
D Definitely false
Correct Answer:  B. The conclusion does not follow
EXPLANATION

Though all politicians are ambitious and some ambitious people are corrupt, we cannot conclude that the corrupt ones are from the politician group.

Test
Q.43 Hard Coding-Decoding
All students are learners. Some learners are successful. All successful people are happy. Which is definitely true?
A All students are happy
B Some students are happy
C Some learners are happy
D All learners are happy
Correct Answer:  C. Some learners are happy
EXPLANATION

Some learners are successful, and all successful people are happy, therefore some learners are definitely happy.

Test
Q.44 Hard Coding-Decoding
In a family, there are 6 members. X is married to Y. X has two children with Y. Z is brother of X. Z is married to W. W has sister V. How many females are there (minimum)?
A 2
B 3
C 4
D 5
Correct Answer:  B. 3
EXPLANATION

Y (wife), W (wife), V (sister). Minimum 3 females identified. Children's gender unspecified.

Test
Q.45 Hard Coding-Decoding
Five friends are sitting in a circle. A sits opposite to C. B sits to the right of A. D is not adjacent to A. How many positions can E occupy?
A 1
B 2
C 3
D 4
Correct Answer:  B. 2
EXPLANATION

In circle of 5: A-B-?-D-C or A-?-D-?-C patterns. With constraints, E can occupy 2 specific positions maintaining the circular arrangement.

Test
Q.46 Hard Syllogism
Some vegetarians are athletes. All athletes maintain discipline. Conclusions: I. Some vegetarians maintain discipline. II. All vegetarians are disciplined. Which conclusion(s) follow?
A Only I follows
B Only II follows
C Both I and II follow
D Neither I nor I nor II follows
Correct Answer:  A. Only I follows
EXPLANATION

Some vegetarians are athletes, and all athletes maintain discipline. Therefore, some vegetarians (the athlete ones) maintain discipline. I follows. II doesn't follow as not all vegetarians are athletes.

Test
Q.47 Hard Syllogism
No artist is a businessman. All businessmen are ambitious. Conclusions: I. No artist is ambitious. II. Some ambitious people are not artists. Which conclusion(s) follow?
A Only I follows
B Only II follows
C Both I and II follow
D Neither I nor II follows
Correct Answer:  B. Only II follows
EXPLANATION

From premises, we know artists ≠ businessmen, and all businessmen are ambitious. This means ambitious people exist (businessmen), but we cannot conclude all ambitious are businessmen. So II follows (some ambitious are not artists). I doesn't follow as non-businessmen artists could be ambitious.

Test
Q.48 Hard Syllogism
All novels are literary works. Some literary works are award-winning. No award-winning work is forgotten. Can we conclude some novels are not forgotten?
A Yes, definitely
B No, we cannot
C Only if explicitly stated
D Probably true
Correct Answer:  B. No, we cannot
EXPLANATION

While some literary works are award-winning and no award-winning work is forgotten, we cannot confirm that the novels which are literary works are among those award-winning works.

Test
Q.49 Hard Syllogism
No pessimist achieves success. All lazy people are pessimists. Some lazy people study. What about those who study?
A All who study are successful
B Some who study may not achieve success
C All who study are lazy
D No one who studies is lazy
Correct Answer:  B. Some who study may not achieve success
EXPLANATION

Some lazy people study, and all lazy people are pessimists, and no pessimist achieves success. Therefore, some who study may not achieve success.

Test
Q.50 Hard Syllogism
All renewable energy sources are sustainable. Some sustainable practices are costly. All costly practices require government support. Can we say all renewable energy sources require government support?
A Yes
B No
C Partially
D Insufficient data
Correct Answer:  B. No
EXPLANATION

While all renewable sources are sustainable, only some sustainable practices are costly. We cannot establish that all renewable energy sources are among those costly practices.

Test
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