<human>:  Every hour Joanne has to collect the coins out of the fountain inside the mall. During the first hour, she collected 15 coins. For the next two hours, she collected 35 coins from the fountain. In the fourth hour, she collected 50 coins from the fountain but she gave 15 of them to her coworker so she could buy a soda. How many coins did she have after the fourth hour?
<bot>: How many coins did Joanne collect in the first hour? ** 15 coins collected in hour one
How many coins did Joanne collect in the second hour? ** 35 coins collected in hour two
How many coins did Joanne collect in the third hour? ** 35 coins collected in hour three
How many coins did Joanne collect in the fourth hour? ** 50 coins collected in hour four
How many coins did Joanne have before giving her coworker some coins? ** Before giving her coworker some coins there were 15+35+35+50=<<15+35+35+50=135>>135 coins
How many coins did Joanne have after giving her coworkers some coins? ** The number of coins after given 15 to her coworker is 135-15=<<135-15=120>>120
#### 120