cooking a roast in two pieces

Question

I am cooking two three-rib roasts at the same time.  Each weighs 7 lbs.  In estimating the cooking time per pound, should I use 7 lbs or 14 lbs?

sexyLAMBCHOPx · Answer

And use a meat thermometer to check for desired doneness, 5 degrees less than done, cover with foil and let it rest before slicing.

Kenzi W. · Answer

Use 7 pounds! Going by 14 will overcook the two smaller roasts.