Problema Solution
Two printers would finish a task in 24 minutes. Printer 1 alone would finish the task in 60 minutes. How many pages does the task contain if printer 2 prints 5 pages a minute more than printer 1?
Answer provided by our tutors
Let x the minutes printer 2 needs to finish the task, x>0
1/60 + 1/x = 1/24
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........
x = 40 min
Let
p = the number of pages per min that printer 1 prints
p + 5 = the number of pages per min that printer 2 prints
60p = 40(p + 5)
........
........
p = 10 pages
The task contains 60p + 40(p + 5) = 60*10 + 40(10 + 5) = 1200 pages
The task contains 1200 pages.