500
Since he began exercising Devin has been losing weight. In his first week of training, he lost 3 kilograms 530 grams. In the following two weeks of training, he lost 2 kilogram 855 grams each week. Devin now weighs 61 kilograms 820 grams. What was Devin’s weight, in grams, before he started training? Explain your thinking.
Devin lost 3,530 g + 2,855 g = 6,385 g or 6 kg 385 g. So if he now weighs 61,820 g, then before he lost 6,385 g, he weighed 68,205 g or 68 kg 205 g.