Below is an instruction that describes a task. Write a response that appropriately completes the request in English. Please answer in English.

### Instruction:
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?

### Response:
Since Rebecca received 40 books, Mara, who was given three times as many books, received 3*40 = <<3*40=120>>120 books.
Rebecca and Mara's total number of books is 120+40 = <<120+40=160>>160 books.
If Roselyn gave Mara and Rebecca her books, which is 160, then she initially had 60+160 = 220 books.
#### 220