I would use 40 pounds.
25 pounds of potatos shoud be about right.
I would use 25 pounds of potato
Approximately 5 pounds of mashed potatoes would equal 1 gallon.
One pound of of white or russet potatoes makes approximately 1 3/4 cups of mashed potatoes. Using that measurement, then five pounds of potatoes would make approximately 8 3/4 cups of mashed potatoes. Source: http://southernfood.about.com/library/info/blequivp.htm
35lb of potatoes will be enough especially mashed.
There are about 200 Calories in 6oz of good wood Mashed potatoes.
A standard serving of mashed potatoe's is around six ounces. Between five and six pounds should be enough to serve 10 adults and maybe even leave you a little bit of leftovers.
If mashed after cooking, approximately 8 cups.
Typically a serving is 3 or 4 ounces so the answer for 1 pound of mashed potatoes or 16 ounces would be 4 to 5 servings.
There are 2.75 ounces in 80g of mashed potatoes. One ounce = 29 grams.
If you are making mashed potatoes from raw potatoes, generally one potato per person. If you are using instant potatoes, then figure one cup of cooked potatoes per person.