Question

A student estimates that it takes 2 hours to read 25 pages. At this rate, how many hours will she need to read 425 pages?

Write a proportion that represents this situation. Then, solve it.

Answer 1

25/425 = 2/x

Explanation:

Cross multiply and simplify

850=25x

34=x

Answer 2

34 hours

Explanation:

2:25 = x:425

25/2 = 12.5

425/12.5 = 34

so it is 34:425

She will need to read for 34 hours to read 425 pages