Statements: All books are pens. Some pens are pencils. Conclusions: I. Some pencils are books. II. Some pens are books. MCQ with Answer and Explanation

Statements: All books are pens. Some pens are pencils. Conclusions: I. Some pencils are books. II. Some pens are books.
A. Neither I nor II follows
B. Only I follows
C. Only II follows
D. Either I or II follows
Answer: Option C
Solution (By JKSSB Mock Tests)
All books are pens ⇒ Some pens are books (conversion). Some pens are pencils does not imply any relation between pencils and books. Hence only II follows.

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Practice More Mental Reasoning Questions

Question #1
If PEN is coded as QFO, how is TIN coded?
A. VJP
B. VJO
C. UJO
D. UJP

Correct Answer: Option C


Explanation:
Each letter is shifted forward by 1: P→Q, E→F, N→O; so T→U, I→J, N→O, giving UJO.

This question belongs to: Reasoning Mental Reasoning
Question #2
Find the missing term: 2, 5, 11, 23, 47, ?
A. 95
B. 96
C. 93
D. 94

Correct Answer: Option A


Explanation:
Each term is multiplied by 2 and 1 is added: 2×2+1=5, 5×2+1=11, 11×2+1=23, 23×2+1=47, so next is 47×2+1=95.

This question belongs to: Reasoning Mental Reasoning
Question #3
Complete the series: 7, 10, 16, 28, 52, ?
A. 90
B. 94
C. 100
D. 98

Correct Answer: Option C


Explanation:
Pattern: ×2 −4: 7×2−4=10, 10×2−4=16, 16×2−4=28, 28×2−4=52, 52×2−4=100.

This question belongs to: Reasoning Mental Reasoning