Question:
In the following series find the one number that is wrong:
2, 3, 13, 37, 86, 167, 288
In the following series find the one number that is wrong:
2, 3, 13, 37, 86, 167, 288
2, 3, 13, 37, 86, 167, 288
Show Hint
Check whether the gaps between terms are squares of consecutive odd numbers, then rebuild the series term by term to find the mismatch.
Updated On: Jul 14, 2026
- 3
- 13
- 37
- 86
Show Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Differences should be squares of consecutive odd numbers: 1,9,25,49,81,121. Rebuilding: 2,3(+1),12(+9),37(+25),86(+49),167(+81),288(+121). Given series shows 13 instead of 12 at position 3 - the mismatch.
Final Answer: 13, option (2).
Final Answer: 13, option (2).
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