Answer:
Net sales = $950,000
Cost of goods sold = $660,000
     Finished Goods$   W.I.P$      Materials$
Q1 Â Â Â Â Â Â Â 42,440 Â Â Â Â Â Â 27,780 Â Â Â Â Â Â 32,580
Q2 Â Â Â Â Â Â 35,080 Â Â Â Â Â Â 25,770 Â Â Â Â Â Â 79,000
Q3 Â Â Â Â Â Â Â 12,540 Â Â Â Â Â Â 20,120 Â Â Â Â Â Â Â 52,910
Q4 Â Â Â Â Â Â Â 39,050 Â Â Â Â Â Â 32,990 Â Â Â Â Â Â 22,670
Total      129,110       106,660       187,160
a. Inventory Turnover Ratio
                Sales/F.G       COGS/WIP    COGS/R.M.
             950,000/129,110  66,000/106,660  660,000/187,160
               7.35 times        6.18 times      3.52 times
b. Inventory weeks on hand (i.e. 52 weeks/inventory)
                52/7.35           52/6.18        52/3.52
                 7.07              8.41           14.77
                7 weeks          8 weeks        15 weeks