Jo read 50 pages of a novel in 4 hours.
At the same rate, how long would it take Jo to read 400 pages?
The formula is:
Number of pages read in 1st situation Number of pages read in 2nd situation
------------------------------------- = --------------------------------------
Time to read pages in 1st situation Time to read pages in 2nd situation
Plug in:
50 pages 400 pages
---------- = -----------
4 hours x hours
Erase the words:
50 400
---- = -----
4 x
Cross multiply:
50x = 1600
x = 1600/50
x = 32
Answer: it would take Jo 32 hours to read 400 pages.
Edwin
You can put this solution on YOUR website! Jo read 50 pages of a novel in 4 hours.
At the same rate, how long would it take Jo to read 400 pages?
The formula is:
Number of pages read in 1st situation Number of pages read in 2nd situation
------------------------------------- = --------------------------------------
Time to read pages in 1st situation Time to read pages in 2nd situation
Plug in:
50 pages 400 pages
---------- = -----------
4 hours x hours
Erase the words:
50 400
---- = -----
4 x
Cross multiply:
50x = 1600
x = 1600/50
x = 32
Answer: it would take Jo 32 hours to read 400 pages.