Question

If a 4 pound roast takes 150 minutes to cook how long should a five pound roast take

Answer 1

150+150 is 300 minutes . All your doing is adding up what u got .

Answer 2

step 1 find time for 1 pound
      150/4 = 37.5
step 2 find time for 5 pounds by multiplying 37.5 by 5
      37.5 * 5 = 187.5 minutes