Identify the wrong number in the series. 145, 122, 92, 82, 65, 50
2023
Identify the wrong number in the series. 145, 122, 92, 82, 65, 50
- A.
65
- B.
92
- C.
82
- D.
122
- E.
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Attempted by 50 students.
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Correct answer: B
To solve for the wrong number in the series, let's examine the differences and the underlying pattern of the numbers: 145, 122, 92, 82, 65, 50.
Step-by-Step Analysis
Analyze the structure:
Each number in this series follows the pattern (n * n) + 1, where n decreases by 1 for each subsequent term.
145 = (12 * 12) + 1
122 = (11 * 11) + 1
101 = (10 * 10) + 1 (This should be the third number)
82 = (9 * 9) + 1
65 = (8 * 8) + 1
50 = (7 * 7) + 1
Identify the wrong number:
Comparing the pattern to the original series, the third number is listed as 92 instead of 101. Therefore, 92 is the incorrect term.