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

### Instruction:
Zig wrote four times as many books as Flo. If Zig wrote 60 books, how many books did they write altogether?

### Response:
If Zig wrote 60 books, four times as many books as Flo, Flo wrote 60/4=<<60/4=15>>15 books
Together, they wrote 60+15=<<60+15=75>>75 books.
#### 75