Mathematics · Averages and Weighted Sums
A computer system has memory access times of 2 ns for cache memory, 10 ns for main memory, and 10 ms (10,000,000 ns) for disk storage. If 80% of memory accesses are to cache, 15% to main memory, and 5% to disk storage, what is the average memory access time?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 11002.4 ns
- 2520 ns
- 350,003.1 ns
- 4500,003.1 ns✓
Correct answer
500,003.1 ns
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