0 votes 0 votes how the formula came? SAUMYA2019 asked Jan 11, 2019 SAUMYA2019 286 views answer comment Share Follow See 1 comment See all 1 1 comment reply Magma commented Jan 11, 2019 reply Follow Share It's just a probability question each process spends 30% of it's execution time waiting for completion of I/o there are 5 process : (0.3) ^5 that that time our CPU is idle therefore , CPU utilization : 1 - (0.3)^5 0 votes 0 votes Please log in or register to add a comment.