Find the odd number in the set 515, 732, 1725, 346
Last updated Sep 4, 2026
Correct Answer:
Option C —
1725
The odd number in the set is C) 1725.Pattern Explanation
All other numbers in the set follow the rule of a whole number cubed plus three:
346 is seven cubed (343) plus three.
515 is eight cubed (512) plus three.
732 is nine cubed (729) plus three.
1725 breaks this pattern because twelve cubed plus three is 1731 (or twelve cubed minus three is 1725).
Answer verified by Quintessence Classes faculty — Karan Nagar, Srinagar.
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