been stuck on this for awhile for now

Question

Sally bought five boxes. A week later half of all her boxes were destroyed in a fire. There are now only 30 boxes left. With how many did she start?

Answer 1

If Sally now has 30 boxes left and 30 is half of what she had before then Sally had 60 boxes before the fire. Since in the very beginning she bought 5 new boxes it means that she started with 55 boxes.