Complete the series: 7, 10, 16, 28, 52, ? MCQ with Answer and Explanation

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Complete the series: 7, 10, 16, 28, 52, ?

A. 94

B. 90

C. 100

D. 98

Answer: Option C

Solution (By JKSSB Mock Tests)

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

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Question #1

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Statements: Some dogs are cats. All cats are rats. Conclusions: I. Some rats are dogs. II. All dogs are rats.

A. Only II follows

B. Both follow

C. Neither follows

D. Only I follows

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Correct Answer: Option D

Explanation:
Some dogs are cats and all cats are rats ⇒ Some dogs are rats ⇒ Some rats are dogs. All dogs are rats does not follow. Hence only I.

This question belongs to: Reasoning Mental Reasoning

Question #2

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In a certain code language, 'Roses are red' is written as 'ni pe to', 'Violets are blue' is written as 'pe ki to', 'Roses are beautiful' is written as 'ni pe so'. What is the code for 'beautiful'?

A. to

B. ni

C. so

D. pe

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Correct Answer: Option C

Explanation:
From first and third, 'Roses are' common = ni pe. Remaining in third is 'beautiful' = so.

This question belongs to: Reasoning Mental Reasoning

Question #3

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Find the missing term: 100, 95, 85, 70, 50, ?

A. 30

B. 20

C. 35

D. 25

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Correct Answer: Option D

Explanation:
The differences are -5, -10, -15, -20, so the next difference is -25: 50-25=25.

This question belongs to: Reasoning Mental Reasoning

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