Question

pam read 5 pages of a mystery book in 3 minutes. if she continues to read at the same rate how many hours will it take her ro read a 235 page mystery book

Answer 1

Pam would read 235 pages in 141 minutes or 2hrs and 21min.
Divide 3 from 5 to get the time it takes her to read 1 page which is 0.6 . Now multiply .6 by the number of total pages (235) to find the time it takes, which would be 141 minutes, 2.35 hours, or 2 hours and 21 minutes (whichever you prefer) ( 3/5 = .6 × 235 = 141 )

Answer 2

What your trying to find is:

$\frac{5 \: pages}{3 \: minutes} = \: \frac{235 \: pages}{ ... \: minutes}$
so figure out how much you need to multiply to get from 5 to 235.
235 ÷ 5 = 47
so multiply 3 by 47 to find out how long it will take to read 235 pages.
3 × 47 = 141

so it will take Pam 141 minutes (or 2 hours and 21 minutes)