Bunuel wrote:

Joe wants to copy a 975 page manual and will use the office copy machine, which can make 4 copies per second. If employees at Joe's office must reserve copier time with the printing department in one minute increments then, at a minimum, how many minutes must Joe reserve?

A. 4

B. 5

C. 55

D. 243

E. 244

The machine copies at a rate of

\(\frac{4pages}{1sec}*\frac{60secs}{1 min}=\frac{240pages}{1 minute}\)

How many minutes must Joe schedule to copy 975 pages?

W/r = t, time to

finish the work:

\(\frac{975p}{\frac{240p}{1min}}= 975 *\frac{1}{240}= 4.xx\)

A remainder of work time means he needs more than four minutes to finish.

To check: (240 * 4) = 960

4 minutes = only 960 pages, not 975

The machine is reserved in 1-minute increments.

He must

schedule one more minute (he won't use all of it)

4 + 1 = 5 minutes

Answer

_________________

In the depths of winter, I finally learned

that within me there lay an invincible summer.

-- Albert Camus, "Return to Tipasa"