I just don't know how to answer this question?

Question

Upper whitlock gaming makes video games for teens. The two most popular games are the I Dig game and the vista cruiser game.The company knows from past experience that they sell at most twice as many vista cruiser games as I dig games. Upper Whitlock gaming cannot have more than 1800 of these games in stock. It costs 10 dollars to produce the I dig game and 15 dollars for the vista cruiser game. Upper Whitlock gaming spends at least 14 000 dollars to produce these games. What is the maximum profit Upper Whitlock gaming can make from selling these games if the I dig game is sold for 45 dollars and the Vista cruiser game for 60 dollars? the choices are 99 000, 85 750, 54 679, 49 750 I keep getting a profit of 75 000 dollars. What am I doing wrong?

Answer 1

I just worked it out and also got a profit of $75K.  Incidentally, at that vertex (600,1200) there is a revenue of $99K, which is one of the options.  I would consider the possibility that whoever wrote the answers might have confused revenue vs profit.  Mistakes happen, unfortunately.