Statements: 1. Some papers are files. 2. Some files are folders. Conclusions: I. Some papers are folders. II. All folders are papers. Which conclusion(s) logically follow? MCQ with Answer and Explanation
Statements:
1. Some papers are files.
2. Some files are folders.
Conclusions:
I. Some papers are folders.
II. All folders are papers.
Which conclusion(s) logically follow?
A. Only conclusion I follows
B. Only conclusion II follows
C. Both I and II follow
D. Neither I nor II follows
Answer: Option D
Solution (By JKSSB Mock Tests)
A 'some' relationship does not chain logically. There is no direct link established between papers and folders. Therefore, neither conclusion can be logically deduced.
Statements:
1. Some boys are students.
2. All students are tall.
Conclusions:
I. Some boys are tall.
II. All boys are tall.
Which conclusion(s) logically follow?
Explanation:
The boys who are students must be tall because all students are tall. Hence, some boys are tall (I). We do not know about the boys who are not students, so we cannot conclude all boys are tall (II).
Statements:
1. Some stars are moons.
2. Some moons are planets.
Conclusions:
I. No star is a planet.
II. Some stars are planets.
Which conclusion(s) logically follow?
Explanation:
There is no direct connection between stars and planets. Therefore, neither conclusion is certain. However, because they form a complementary pair (No A is B / Some A are B), one of them must mathematically be true. Thus, either I or II follows.
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