I'm confused about the Discount Card example. If the boy normally sells four feathers for 100 coins each, that's 400 coins. But if you donate 400 coins first, you still have to buy the four feathers at 40 coins each, which totals 560. How does that save you "up to 240 coins?"
"Humans and robots living together in harmony and equality. That was my ultimate wish."
I'm confused about the Discount Card example. If the boy normally sells four feathers for 100 coins each, that's 400 coins. But if you donate 400 coins first, you still have to buy the four feathers at 40 coins each, which totals 560. How does that save you "up to 240 coins?"
"Humans and robots living together in harmony and equality. That was my ultimate wish."