Answer the following question, with explanation first.
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?

39
Woody = 1.

5 years = 18 months.

Ivanka = 18 + 3 = 21 months.

18 + 21 = 39 months.

It took Ivanka and Woody 39 months to write their books.

.

The answer: 39