Project ForgeGeneral Aptitude
Analytical Aptitude
GATE 2014
Hard
What is the next number in the series?
12, 35, 81, 173, 357, ____
725
Explanation
Look at consecutive differences: 35-12=23, 81-35=46, 173-81=92, 357-173=184. Each difference exactly doubles the previous one (23, 46, 92, 184). The next difference is 184*2=368, giving 357+368=725.
Source: GATE ME 2014 (Session 1 / Set-1) (2014)
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