Statements: All rivers are lakes. Some lakes are oceans. Conclusions: I. Some oceans are rivers. II. Some lakes are rivers. MCQ with Answer and Explanation

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Statements: All rivers are lakes. Some lakes are oceans. Conclusions: I. Some oceans are rivers. II. Some lakes are rivers.

A. Neither follows

B. Both follow

C. Only II follows

D. Only I follows

Answer: Option C

Solution (By JKSSB Mock Tests)

All rivers are lakes ⇒ Some lakes are rivers. Some lakes are oceans does not imply some oceans are rivers. Only II.

This question belongs to: Reasoning Mental Reasoning

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Practice More Mental Reasoning Questions

Question #1

Find the next term: 100, 81, 64, 49, 36, ?

A. 30

B. 25

C. 27

D. 28

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Correct Answer: Option B

Explanation:
The terms are squares descending: 10^2, 9^2, 8^2, 7^2, 6^2. Next term = 5^2 = 25.

This question belongs to: Reasoning Mental Reasoning

Question #2

Among five persons A, B, C, D and E, A is taller than B but shorter than C. D is taller than E but shorter than B. Who is the tallest?

A. C

B. D

C. B

D. A

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Correct Answer: Option A

Explanation:
Order: C > A > B > D > E. Therefore C is the tallest.

This question belongs to: Reasoning Mental Reasoning

Question #3

Find the missing term: 2, 3, 6, 11, 18, ?

A. 26

B. 28

C. 27

D. 25

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Correct Answer: Option C

Explanation:
Differences are +1, +3, +5, +7, so next difference is +9: 18+9=27.

This question belongs to: Reasoning Mental Reasoning

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