Imagine the supplier did see the demand pattern as 10-10-10-15-15-15-15-20-20-20 and interpreted it to mean that demand should be forecasted as 20. If the supplier also had a three-day lead time and had also been maintaining inventory position at 3*10 = 30, what must the new inventory position be if the supplier believes that the new forecast per period is 20 and must account for a three-day lead time?

What must the new inventory position be if the supplier believes that the new forecast per period is 20 and must account for a three-day lead time?.