Question

A copy machine can print 10 pages every 15 seconds. At this rate,how many minutes would it take to print a 72-page document?

Answer 1

1.8minutes

Step-by-step explanation

From the question, we are told that a copy machine can print 10 pages every 15 seconds, this can be expressed as;

10 pages = 15seconds

To get the amount of time it will take to print 72pages, we will say;

72 pages = x

Divide both expressions

10/72 = 15/x

Cross multiply

10 * x = 15 * 72

10x = 1080

x = 1080/10

x = 108seconds

Convert to minutes

Since 60 seconds = 1minute

108 seconds = y

60y = 108

y = 108/60

y = 1.8minutes

Hence it would take 1.8minutes to print 72 page document