I would NEVER feed guests canned beans. -Fresh are tastier, healthier and only a fraction more costly.
about 22 mate
2 large cans should do fine.
I would use 9 cans
I would use 25 pounds of fresh green beans for 100 people
10
a 10 lb can of green beans will feed 50 people with 3 oz portions.
I would use 150 cans
Ten gallons of beans will be needed to feed 300 people. It is estimated that one gallon will serve 30 to 35 people.
10
Are they only eating beans or it a single veg as part of a dinner meal.How can we give a reasonable answer if you don't give us all the facts.
You can feed 96 people an average serving of 4 ounces.
Without knowing what kind of dish you are serving the red beans in, this will be an estimate. For straight red beans, served as a side dish, you can estimate that each person will eat approximately 1/2 c of beans. For 150 people, this is 75 cups. Each can tends to have about 1 cup worth of beans in it, so you would need 75 cans of red beans.
You need about 10 twenty eight ounce cans
100
presumably they are having other food also. So 10 people should use 3 can of beans