How many trays are needed if there 30 sandwiches and 8 fit on one tray?
To calculate the number of trays needed, divide the total number of sandwiches by the number that can fit on each tray:
30 sandwiches / 8 sandwiches per tray = 3.75 trays
Since you can't have a partial tray, you will need 4 trays to hold all 30 sandwiches.
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