Find the next number in the series: 10, 20, 40, 80, 160, ?
Difficulty: Easy
About this MCQ
This Easy Analytical Reasoning MCQ checks one syllabus fact.
The question is: “Find the next number in the series: 10, 20, 40, 80, 160, ?”
The accepted answer is D. 320. “Find the next number in the series: 10, 20, 40, 80, 160,” is answered by 320 (option D). Option A (“240”) does not match the stem; it is a near-miss used to catch incomplete recall of 320. Option B (“300”) does not match the stem; it is a near-miss used to catch incomplete recall of 320. Remaining alternatives (280) fall outside the same rule and should be eliminated once 320 is identified. Analytical Reasoning questions of this type reward precise definitions rather than approximate associations. Analytical Reasoning recall of this distinction is a regular item in FPSC, PPSC, NTS, and CSS papers.
- A. 240
Why not A: “240” is not correct. The accepted answer is D. 320. “Find the next number in the series: 10, 20, 40, 80, 160,” is answered by 320 (option D). Option A (“240”) does not match the stem; it is a near-miss used to catch incomplete recal
- B. 300
Why not B: “300” is not correct. The accepted answer is D. 320. “Find the next number in the series: 10, 20, 40, 80, 160,” is answered by 320 (option D). Option A (“240”) does not match the stem; it is a near-miss used to catch incomplete recal
- C. 280
Why not C: “280” is not correct. The accepted answer is D. 320. “Find the next number in the series: 10, 20, 40, 80, 160,” is answered by 320 (option D). Option A (“240”) does not match the stem; it is a near-miss used to catch incomplete recal
- D. 320 ✓
Correct answer
D. 320
Explanation
“Find the next number in the series: 10, 20, 40, 80, 160,” is answered by 320 (option D). Option A (“240”) does not match the stem; it is a near-miss used to catch incomplete recall of 320. Option B (“300”) does not match the stem; it is a near-miss used to catch incomplete recall of 320. Remaining alternatives (280) fall outside the same rule and should be eliminated once 320 is identified. Analytical Reasoning questions of this type reward precise definitions rather than approximate associations. Analytical Reasoning recall of this distinction is a regular item in FPSC, PPSC, NTS, and CSS papers.
Source: Analytical Reasoning Official FPSC/NTS/PPSC-Style Reference Guide
Tags: FPSC, PPSC, logical reasoning, analytical reasoning, aptitude, NTS
Submitted by: MCQsHub Editorial
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