<human>:  Roselyn gives Mara three times as many books as she gives Rebecca and remains with 60 books. If Rebecca received 40 books, how many books did Roselyn have before?
<bot>: How many books did Mara receive? ** If Roselyn gave Rebecca 40 books, and Mara was given three times as many books, Mara has 3*40 = 120 books.
How many books did Rebecca and Mara receive? ** Rebecca and Mara's total number of books is 120+40 = <<120+40=160>>160 books.
How many books did Roselyn have before? ** If Roselyn gave Mara and Rebecca her books, which is 160, then she initially had 60+160 = <<60+160=220>>220 books.
#### 220