Are they having other vegetables. If so, then about 18 pounds of potato.
20 pounds
you would be safe with 4 or 5 ounces per person
depending on their appetites between 15 and 25 people!
I find that 5 medium sized potatoes is good for 3 people. So for 9 it would be 15 potatoes. If you want extra do 20.
About 5 pounds of mashed poatoes are needed for twenty people. ~in my opinion, five pounds of potatoes could feed ME!!!!!!!!........ but i LOve potatoes
an average potato may weigh 150 grams (0.33 lb) so there could be 20/25 in an 8 lb bag
20
I would get 20 pounds.
There are 20.
One pound equals 16 ounces, so 20 pounds times 16 ounces equals 320 ounces.
I would serve 4 oz per person. So 5 pounds for 20 people.