<human>:  Amalia can read 4 pages of her book in 2 minutes. How many minutes will it take her to read 18 pages of her book?
<bot>: How many minutes does it take Amalia to read 1 page? ** Amalia can read 1 page in 2/4 = 0.5 minutes.
How many minutes will it take Amalia to read 18 pages? ** Hence, she can read 18 pages in 18 x 0.5 minutes = <<18*0.5=9>>9 minutes.
#### 9