What is the unit rate for someone who can type 8,580 words in 2 hours and 45 minutes?

1 Answer
Apr 9, 2016

#52# words per minute.

Explanation:

As #2# hours and #45# minutes are equivalent to #2xx60+45=165# minutes, this means that

someone can type #8580# words in #165# minutes and hence

in one minute the person can type #8580/165=(8580-:5)/(165-:5)# (as numerator and denominator are clearly divisible by #5#)

or #1716/33# words.

Again, numerator and denominator are both divisible by #3# and #11# too, this is equivalent to

#(52cancel(572)cancel(1716))/(1cancel(11)cancel(33))# or #52# words per minute.