Burger shop
In a burger shop,you can buy a cheese burger with $7, or you could buy a extra cheese burger for $11 .( it is the most expensive burger in town :v)
What is the maximum number of money that you can't get the exact value with buying any combination of those 2 burgers
Example : $14 you could buy 2 cheese burgers, but with $15, you can't buy the exact value.
The answer is 59.
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1 solution
Direct application of Chicken McNugget Theorem . Let m = 7 and n = 1 1 , then m n − m − n = 5 9 .