Find the next number in the series: 100, 90, 81, 73, 66, ?
Difficulty: Hard
About this MCQ
This Hard Analytical Reasoning question asks: Find the next number in the series: 100, 90, 81, 73, 66, ? The correct choice is C. 60. Read the options below, commit to one, then use the explanation to see why that choice holds and why the others do not.
Analytical Reasoning items like this one are written for Pakistan exams such as CSS, FPSC, PPSC, and NTS. The difficulty label is a hint about how much of the topic the stem assumes, not a score. Tags and exam names, when they are present, tell you where else the same idea is tested. Previous and next links stay in Analytical Reasoning so you can continue the subject. Related questions point at nearby stems if you want another angle on the same idea.
Treat the explanation as part of the question, not a footnote. If you missed it, reread the stem against the correct option before you open the next Analytical Reasoning item. A timed quiz is the same pool with a clock and a score. A past paper is a full sitting rather than this single question.
- A. 59
Why not A: “59” does not fit this question. The answer is 60.
- B. 58
Why not B: “58” does not fit this question. The answer is 60.
- C. 60 ✓
- D. 61
Why not D: “61” does not fit this question. The answer is 60.
Correct answer
C. 60
Explanation
60 (option C) is the accepted answer to “Find the next number in the series: 100, 90, 81, 73, 66,”. Option A (59) does not fit this question. Option B (58) does not fit this question. Option D (61) does not fit this question. For this Analytical Reasoning question, the accepted answer is 60.
Source: Analytical Reasoning Official FPSC-Style Reference Guide
Tags: FPSC, logical reasoning, analytical reasoning, aptitude
Submitted by: MCQsHub Editorial
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