Question

Find the wrong number in the series.
2, 3, 7, 15, 31, 63, 127

A 3
B 2
C 15
D 127
E None of these
Practice Next

Relevant for Exams:

Hey! Ask a query

🎓
Think You're Ready for RBI Grade B?
RBI Grade B 2026 Phase 1 Memory Based Paper
  • 200 Questions with Detailed Solutions
  • Section-wise Coverage (GA, English, Quant & Reasoning)