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Well this all depends on the serving size you wish to feed people. Let's assume for the sake of this answer you want to give them each a 1/2 pound serving.

If you used a 5 pound bag at 1/2 per person, you'd get the following equation:

5n x 1/2 = 40

5n = 20

n = 4

So based on this equation you would need 4 - 5 lbs bags of potatoes to feed 40 people with 1/2 lb servings.

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13y ago

What else can I help you with?