2 printers can print 4 reams of paper in 30 min. If you had 3 printers and 5 reams to print, how many min would it take?

Question

 none

Answer 1

I would start by calculating how many reams/minute for one printer.

 

2 printers = 4 reams/30 minutes

1 printer = 4reams/2*30minutes = 1 ream/15 minutes

 

Then 3 printers = 1 ream/15 minutes x 3 = 3reams/15 minutes = 1 ream/5 minutes

 

so we can use a proportion to solve for how many minutes it would take for 5 reams with 3 printers

 

1 ream/5 minutes = 5 reams/ x minutes

 

then solve for x

 

1/5 = 5/x

 

x = 25 minutes

 

There are other ways to solve this problems.