What is the next term in the series: 1, 3, 7, 15… - Series (Numeric and Alphanumeric) (Reasoning) Solved Question

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Q · Series (Numeric and Alphanumeric)medium · 45s

What is the next term in the series: 1, 3, 7, 15, 31, ...?

TopicSeries (Numeric and Alphanumeric)

Question Typemultiple choice

Difficultymedium

Marking+1 / −0.25

Test Duration30 min

Step-by-Step Solution

Every step explained - no skipped algebra.

Each term doubles the previous term plus 1: 1×2+1=3, 3×2+1=7, 7×2+1=15, 15×2+1=31. Next term: 31×2+1=63.

Final Answer: Option A - 63