It depends on how large the family is or how much the people in the family eats
I would use about 10-12 pounds.
you would need fifteen pounds
Allow 8 ounces of uncooked beef per person.For 40 people that would mean you need 20 pounds of beef.
Why did eastern states need beef
8.818 lbs
No, you do not need oil to cook ground beef.
Well lets work it out: If you were feeding a person a steak, it would be an 8-10 oz streak you would give them but with roast beef you would cut this thinner and give them more vegetables. Thus lets say you allow 4 oz per person (1/4 of a pound), then you would need 75/4 or 18.75 pounds of sliced beef. Thus to be sure you have enough you need to order between 20 and 25 pounds of sliced beef. But be sure you ask for it to be sliced thinly!!
None if they are all vegetarian!
This depends on how much you want to put on each Kebab. For example if you want 5 pieces you would need 500 pieces of Beef.
To determine how many pounds of sliced roast beef you need to feed 100 people, a common guideline is to estimate about 1/3 pound (or 5.3 ounces) of cooked meat per person for a main course. Therefore, for 100 people, you would need approximately 33 pounds of sliced roast beef. It’s advisable to round up a bit to account for varying appetites, so around 35 pounds would be a safe estimate.
You would need to cook it for at least 5 hours & 20 minutes !
For serving 100 people, a general guideline is to allocate about 1/2 pound of fried chicken and 1/2 pound of beef roast per person. Therefore, you would need approximately 50 pounds of fried chicken and 50 pounds of beef roast. Adjustments can be made based on your guests' appetites and whether you are serving additional sides.