Find the next number in the series: 100, 95, 85, 70, ? MCQ with Answer and Explanation

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Find the next number in the series: 100, 95, 85, 70, ?

A. 45

B. 50

C. 40

D. 55

Answer: Option B

Solution (By JKSSB Mock Tests)

Subtractions are 5, 10, 15; next subtraction is 20. 70−20=50.

This question belongs to: Reasoning Logical Reasoning

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Practice More Logical Reasoning Questions

Question #1

If 'PAPER' is coded as 'SDSHU', then 'INK' is coded as ?

A. LQM

B. LQO

C. LRN

D. LQN

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Correct Answer: Option D

Explanation:
Each letter is shifted three places forward: I→L, N→Q, K→N = LQN.

This question belongs to: Reasoning Logical Reasoning

Question #2

If 'STONE' is coded as 'TUQPG', then 'ROCK' is coded as ?

A. SPDM

B. SPEL

C. SPDL

D. SQDL

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Correct Answer: Option C

Explanation:
S→T, T→U, O→Q, N→P, E→G; so R→S, O→P, C→D, K→L = SPDL.

This question belongs to: Reasoning Logical Reasoning

Question #3

R is the brother of S. S is the daughter of T. T is the sister of U. How is U related to R?

A. Uncle

B. Data inadequate

C. Aunt

D. Uncle or Aunt

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Correct Answer: Option D

Explanation:
T parent of R and S. U sibling of T, gender unknown, so uncle or aunt of R.

This question belongs to: Reasoning Logical Reasoning

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