Question

The copy machine in the teacher’s lounge can print 3 single-sided pages in 16 seconds. Ms. Burton has 25 students in her class, and has to give three one-page quizzes on Friday. How long will it take the machine to print all of Ms. Burton’ copies if she needs to print one copy of each quiz for every student? Answer ___________________________ minutes and _____________________________ seconds

Answer 1

Answer: It will take the machine 6 minutes and 40 seconds to print all of Ms Burton's copies. Answer: \boxed{6, 40}.

Explanation:
Ms Burton needs 25 copies of each quiz, for a total of 25 * 3 = <<253=75>>75 copies.

The machine can print 3 pages in 16 seconds, so it can print 1 page in 16 / 3 = <<16/3=5.333>>5.333 seconds.

It will take the machine 5.333 seconds to print each copy, so it will take 5.333 * 75 = <<5.33375=400>>400 seconds to print all of Ms. Burton's copies.

Since there are 60 seconds in a minute, this is equivalent to 400 / 60 = <<400/60=6.667>>6.667 minutes.

Thus, it will take the machine 6 minutes and 40 seconds to print all of Ms. Burton's copies. Answer: \boxed{6, 40}.