Question

Which of the following is the most appropriate unit to describe the rate at which a person reads?

Minutes per word, because the independent quantity is the minutes

Minutes per word, because the independent quantity is the words

Words per minute, because the independent quantity is the minutes

Words per minute, because the independent quantity is the words

Answer 1

typing speed is also measured in words per minute.
and when in doubt, time is always the independent one :)

Answer 2

thanks your awesome at math

Answer 3

you're welcome :)
and I try my best ;)