Joe likes to play video games and he normally spends $50 a month on video games. Joe also sells his games for $30 each once he is done playing them. If he starts with $240, how many months can he buy games at $50 and sell them at $30 before he is out of money? Give me reasons, before answering the question
Joe can buy a game for $50 and sell it for $30, so he is losing $50 - $30 = $20 each month when he buys and sells a game. Joe starts out with $240 and he buys a game and sells a game he loses $20 per month, so it will take $240 / $20 = 12 months until he is out of money. So the final answer is 12.