Statements: All locks are keys. No key is a door. Conclusions: I. No lock is a door. II. Some doors are locks. MCQ with Answer and Explanation

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Statements: All locks are keys. No key is a door. Conclusions: I. No lock is a door. II. Some doors are locks.

A. Only II follows

B. Only I follows

C. Both follow

D. Neither follows

Answer: Option B

Solution (By JKSSB Mock Tests)

All locks keys + no key door → no lock is door. II does not follow.

This question belongs to: Reasoning Logical Reasoning

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Practice More Logical Reasoning Questions

Question #1

Find the next number in the series: 3, 15, 35, 63, ?

A. 105

B. 99

C. 101

D. 89

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Correct Answer: Option B

Explanation:
1×3, 3×5, 5×7, 7×9, 9×11 → 3,15,35,63,99.

This question belongs to: Reasoning Logical Reasoning

Question #2

If 'TIGER' is coded as 'UJHFS', then 'LION' is coded as ?

A. MJPO

B. MIPQ

C. MKPO

D. MJPP

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Correct Answer: Option A

Explanation:
Each letter is shifted one place forward: L→M, I→J, O→P, N→O = MJPO.

This question belongs to: Reasoning Logical Reasoning

Question #3

Find the odd one: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110

A. 90

B. 70

C. 50

D. None of these

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Correct Answer: Option D

Explanation:
All multiples of 10. No odd one.

This question belongs to: Reasoning Logical Reasoning

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