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? MCQ with Answer and Explanation
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?
A. Either I or II follows
B. Only conclusion I follows
C. Only conclusion II follows
D. Neither I nor II follows
Answer: Option A
Solution (By JKSSB Mock Tests)
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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