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Question Review
Wrong Series Practice for Bank & SSC Exams
SpeedMath's Wrong Series module gives you the "spot the odd term" number-series format used in IBPS, SBI and SSC quant sections — the full series is shown with no blanks, and you find which term breaks the pattern the rest of the series follows.
Every series is generated fresh on the server, with three difficulty levels that scale how many operations are layered into the pattern.
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Frequently Asked Questions
The full number series is shown with all its terms — no blanks. One term breaks the pattern that the rest of the series follows, and you have to identify which one.
Missing Series hides one term as a blank you must derive. Wrong Series shows every term, but one of them has been deliberately altered to break the pattern — you identify the odd one out instead of filling a gap.
Easy uses simple single-step patterns with small numbers. Moderate combines two operations or uses larger numbers. Tough uses multi-step or less obvious patterns, matching SSC CGL and IBPS PO prelims difficulty.
Yes. After answering, expand the solution panel to see the correct pattern explained term by term, and exactly which term broke it and why.
Yes. SpeedMath generates every series dynamically on the server, so each session gives you fresh, unique sequences with different numbers and patterns.