if a person reads 10 pages for every 15 minutes how many hours will it take to read 317 pages

Answer 1

Set the 2 ratios equal to each other.

10pages/15minutes = 317pages/x minutes

simplify the first ratio to make the numbers easier to work with.

2pages/3minutes = 317pages/x minutes

then cross-multiply and solve for x.

2(x) = 951

x = 475.5 minutes

question asked for hrs, so divide those minutes by 60 to get hrs.

7.925 hours to read 317 pages.

Answer 2

Use an analogy, if x = the unknown quantity, then

(1/4 hour)/(10 pages) = (x hours)/(317 pages)

or

x = 7.925 hours

Based on the information, you know that he can read 40 pages/hour

Then,

317pages/(40 pages/hour) = 7.925 hours