Number series – find the wrong term (identify the outlier) Series: 8, 13, 21, 32, 47, 63, 83

Introduction / Context:You need to identify the single erroneous term in a steadily increasing series. These questions often use simple, steadily growing increments; one term will break the rule.

Given Data / Assumptions:

• Series: 8, 13, 21, 32, 47, 63, 83.
• Exactly one term is incorrect.

Concept / Approach:Examine first differences. For many such sequences, the differences themselves increase with a constant step. If the step is consistent except at one place, that term is the outlier.

Step-by-Step Solution:

Verification / Alternative check:With the corrected 46, the next differences continue +3: 46→63 is +17 and 63→83 is +20, matching the intended pattern 5, 8, 11, 14, 17, 20.

Why Other Options Are Wrong:

• 13, 21, 32, 83 are compatible with a steadily increasing difference sequence; removing any of them breaks more than one step and cannot restore a clean +3 progression.

Common Pitfalls:Assuming Fibonacci-like addition without checking differences; not verifying the entire tail after a suspected correction.

Final Answer:47