human
Lauren sent 65 pieces of mail on Monday, 10 more pieces of mail on Tuesday than on Monday, 5 fewer on Wednesday than on Tuesday, and 15 more pieces of mail on Thursday than on Wednesday. How many pieces of mail did Lauren send?
assistant
How many pieces of mail did Lauren send on Tuesday? ** Lauren sent 65 + 10 = <<65+10=75>>75 pieces of mail on Tuesday.
How many pieces of mail did Lauren send on Wednesday? ** He sent 75 - 5 = <<75-5=70>>70 pieces of mail on Wednesday.
How many pieces of mail did Lauren send on Thursday? ** And sent 70 + 15 = <<70+15=85>>85 pieces of mail on Thursday.
How many pieces of mail did Lauren send? ** Therefore, he sent 65 + 75 + 70 + 85 = <<65+75+70+85=295>>295 pieces of mail.
#### 295