Question

Four lights blink at intervals of 18 seconds, 24 seconds, 36 seconds, and 48 seconds respectively. How many times will all the lights blink together in 3 hours?

A 90
B 75
C 65
D 45
Practice Next

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)