Question

25. Statements: Some minutes are hours.
No hour is a second.
Some periods are seconds.
Conclusions: I. All periods are definitely not
hours.
II. Some minutes are not seconds.
III. Some seconds are not hours.
(a)Only I and III follow
(b) Only II follow
(c) Only II and III follow (d) Only I and II follow
(e) None of these
dino come questions​

Answer 1

Answer:

c. Only II and III follow

Answer 2

Statements :-

1. Some minutes are hours.
2. No hour is a second.
3. Some periods are seconds.

Conclusion :-

• I. All periods are definitely not hours.
• II. Some minutes are not seconds.
• III. Some seconds are not hours.

Options :-

(a)Only I and III follow

(b) Only II follow

(c) Only II and III follow

(d) Only I and II follow

(e) None of these

Solution :-

Conclusion I) :- All periods are definitely not hours.

• from 4th diagram we can see that some periods can be hours .
• Therefore, conclusion I is incorrect .

Conclusion II) :- Some minutes are not seconds.

• From all diagrams we can conclude that, Some minutes are not seconds is true .

Conclusion III) :- Some seconds are not hours.

• Statement 3 says that, "No hour is a second." .
• Then, some seconds are not hours is false , since all seconds are not hours .

Hence, Option (b) Only II follow is correct answer .

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