Question: $1(10$ points$)$

$($CLO$-3,$ PLO$-2)$

Weekly production requirement of a product are $1000$ items. The cycle time of producing one product on a machine is $10$ minutes. The factory works on two shift basis in which total time available is $16$ hrs$.$ Out of the total available time $25\%$ is wasted. The factory works for $5$ days in a week. How many machines are required to fulfil the production requirement?