## Invitation to Computer Science 8th Edition

$16,000,000$ comparisons $* \frac{1}{12,000}$ seconds/comparison $=1333$ seconds the average time approximates to 22.2 hours.
The average number of comparisons for a 32 million long list would be 16 million Here is the calculation: $16,000,000$ comparisons $* \frac{1}{12,000}$ seconds/comparison = 1333 seconds the average time approximates to 22.2 hours.