Answer:
The mass of 100 pills is 461 x 100 = 46,100mg. 1 kilogram has 1000 grams and one gram has 1000 mg. so 46,100mg/1000=46.1 grams. So 46.1/1000=0.046kg for 100 pills. In other words, 46.1 grams / 1000 grams= 0.046 kg or <1/20th of a kg.
Explanation: