Brain can read 80 pages in 2 hours. how many pages can he read in 3.5 hours?

1 answer

To find out how many pages Brain can read in 3.5 hours, we can set up a proportion:

80 pages / 2 hours = x pages / 3.5 hours

To solve for x, we can cross multiply:

2 hours * x pages = 80 pages * 3.5 hours

2x = 280

x = 280 / 2

x = <<140=140>>140

Therefore, Brain can read 140 pages in 3.5 hours.