PyongyangNorth Korea today unveiled what it is calling "the world's most powerful weapon." The Pukguksong-3 is a submarine-launched ballistic missile (SLBM) capable of carrying nuclear warheads. It follows the unveiling of the super-large, land-based Pukguksong-4 missile unveiled at last October's military parade. According to a United Nations Security Council report, North Korea has accelerated its missile and nuclear programs, despite U.N. sanctions. Critics point out that Kim Jong-un's missile ambitions are not only a threat to world peace but also a burden on North Korea's population. A single missile test costs more than $1.3 billion, enough money to purchase 5 million tons of corn on the world marketfood the Korean people desperately need.

According to the News Wire, what is the opportunity cost of a single missile test in terms of corn for each of North Korea's 26 million people?

how many ton(s) of corn per person?

What would a formula for this type of problem look like?