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Therefore, to buy 48 apples, you would need to purchase them in sets of four, which would be 12 sets (48 divided by 4). The cost of each set would be $6, so the total cost for 48 apples would be:
Total cost = Cost per set x Number of sets
Total cost = $6 x 12
Total cost = $72
So, if you want to buy 48 apples at $2 each with a buy 3 get 1 free deal, you should pay $72 in total.