There's gold in there!
You are trying to take out pieces of gold from a treasure chest.
If you remove gold pieces 3 at a time, then 2 pieces are leftover.
If you remove gold pieces 4 at a time, then 3 pieces are leftover.
If you remove gold pieces 5 at a time, then 4 pieces are leftover.
What's the smallest possible number of gold pieces in the chest?
by
Joel Yip