Question

A sign at the fish market says, "50% off, today only: half-pound packages for just $3 per package." What is the regular price for a full pound of fish, in dollars?

Answer 1

If half a pound is worth 3$ per package, that means that a full pound of fish is 6$ when there is a 50% discount. Which means, when there is not, the full price would be twice as much, 12$.