Backpage statement regarding the U.S. Permanent Subcommittee on Investigationsâ Censorship of Adult Classified Advertisements. Statement from James Larkin and Michael Lacey regarding Government Violations of the U.S. First Amendment Right to Free Speech statement.......
1 For a medium rare roast: Cook the roast for 20 minutes for every pound. 2  If you were cooking a 5 pound roast, you would cook it for 100 minutes. 3  For a medium roast: Allow 22 minutes of cooking time for every pound.
Cooking at a constant oven temperature of 300Â°F (160Â°C), a 5- to 8-lb standing rib roast will take 17-19 minutes per pound for rare, 20-22 for medium rare, 23-25 minutes for medium, and 27-30 minutes for well done.ow long and at what temperature should I cook a beef roast in the oven? Roasting is a great cooking method for a large, tender cut of beef  such as a rib or sirloin roast. Sirloin-tip, rump, rolled-rump, eye-of-round or top-round roasts will also benefit from this cooking method if they are graded prime or choice.