Lindsay Electronics, a small manufacturer of electronic research equipment, has approximately 7,000 items in its inventory and has hired Joan Blasco-Paul to manage its inventory. Joan has determined that 10% of the items in inventory are A items, 35% are B items, and 55% are C items. She would like to set up a system in which all A items are counted monthly (every 20 working days), all B items are counted quarterly (every 60 working days), and all C items are counted semiannually (every 120 working days). How many items need to be counted each day?

The items need to be counted each day are 108 items

Explanation:

To calculate how many items need to be counted each day we would have to calculate first the amount of items according to its percentages as follows:

A items are 0.1 * 7000 = 700

B items are 0.35 * 7000 = 2,450

C Items are 0.55 * 700 = 3,850

Therefore, to calculate how many items need to be counted each day we would have  to make the following calculation:

Items to be counted everyday= 700/20 + 2450/60 + 3850/120 = 108 items

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b. take periodic breaks and alternate between tasks.  

will increase work efficiency, and avoid health issues.