Citizen Printer

How long does it take to print 1 page for each typeface?

This is from Page 226, #21 of Fundamentals of Technical Mathematics (2nd edition): An impact printer prints 1 page using regular type and 3 pages using bold type in 23 seconds. If the printer prints 2 pages using regular type and 4 pages using bold type in 34 seconds, how long does it take to print 1 page for each typeface?

Public Comments

1. x time spent for printing of regular type y time spent for printing of bold type 1x+3y=23 2x+4y=34 x+y=? x=23-3y 2(23-3y)+4y=34 46-6y+4y=34 46-34=6y-4y 12=2y y=6 x=23-3*6=5 x+y=11seconds :)