Final answer:
The contestant weighed 273.1 lb when The Biggest Loser Show began, calculated by adding the weight lost (78.8 lb) to the ending weight (194.3 lb).
Step-by-step explanation:
The contestant on The Biggest Loser show weighed 194.3 lb at the end of the two months and lost 78.8 lb over that period. To find out how much the contestant weighed when the show began, we need to add the weight lost to the final weight. This is a simple addition problem in mathematics.
We start with the final weight, which is 194.3 lb. Then, we add the weight that the contestant lost which is 78.8 lb.
Initial Weight = Final Weight + Weight Lost
Initial Weight = 194.3 lb + 78.8 lb
Initial Weight = 273.1 lb
Therefore, the contestant weighed 273.1 lb when the show began.