Answer:
40
Explanation:
The serving sizes,
, of 20, 80, and 120 have a required amount of meat in pounds,
, of
(the number of pounds of meat is equal to 1/10th the serving size)
However, for the row with a serving size of 40, the number of pounds of meat is equal to
the serving size. Therefore, the serving size of 40 has a different ratio of serving size to pounds of meat than the other ratios.