Question

Paul took a total of 30 pages of notes during 15 hours of class. In all, how many hours willPaul have to spend in class before he will have a total of 32 pages of notes in his notebook?Assume the relationship is directly proportional.

Answer 1

16 hours

Explanation:

Since the relationship is directly proportional, we can establish the following relation:

If there are 30 pages in 15 hours, how many hours will the 32 pages be:

`(15)/(30)=(x)/(32)`

Solving for x:

`\begin{gathered} x=(15\cdot32)/(30) \\ x=16 \end{gathered}`

The number of hours is 16