Question

Erika read 90 pages in 2 and half hours. At the same time, how many hours would it take her to read 225 pages?

Answer 1

6.25 hours

Explanation:

2 and half hours = 2.5 hours

Proportions:

90 pages ⇔ 2.5 hours

225 pages ⇔ E hours

E = 225*2.5/90

E = 6.25 hours

6.25 hours = 6 and 1 quarter hours

Answer 2

6.25 hours

Explanation:

pages per hour

pages/hour

90/2.5 = 36

36 pages per hour

225 / 36 = 6.25 hours