Ivanka wrote a book that took her 3 more months than it took Woody to write a book. Woody spent 1.5 years writing his book. How many months in total did Ivanka and Woody need to write their books?
Woody = 1.5 years = 18 months
Ivanka = 18 + 3 = <<18+3=21>>21 months
18 + 21 = <<18+21=39>>39 months
It took Ivanka and Woody 39 months to write their books.
#### 39