Richard is sent $40$ dollars for his birthday and plans to go to watch the ice hockey match between SKA and Spartak and take some of his friends with him. If he pays for the met both ways, a cup of coffee each and the entry fee to the game how many friends can he treat with his $40$ dollars? (Don\textquotesingle t forget Richard\textquotesingle s tickets). 
Overseas Competition->Knowledge Point->Word Problem Modules->Word Problems in Economics->Complex Money Word Problems