Question

A computer system has a cache hit ratio of 90%, a cache access time of 10 ns, and a main memory access time of 100 ns (charged only on a cache miss). What is the average memory access time for this system?

A 10 ns
B 19 ns
C 91 ns
D 100 ns
E 55 ns
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)