Answer:
18 minutes
Step-by-step explanation:
Because the question may not provide all the information we need to find the amount of time she spent to read 18 pages of the book. Depend on the average reading speed of a person, it is usually from 60s or 1min per page.
Therefore the time she spend reading 18 pages = 1 * 18 = 18 minutes or 1080 seconds
