Answer:
Mark types the fastest rate of words per minute at 75 words per minute
Explanation:
In this question, we want to know which of the three typists has the fastest typing rate.
To calculate this, what we need to do is to divide the total number of words they can type by the number of minutes taken to type those words.
For Natasha, we have; 2600 words / 40 minutes = 65 words per minute
For Henry, we have 4900 words/70 minutes = 70 words per minute
For Mark, we have 3750 words/50 minutes = 75 words per minute
We can see that Mark with 75 words per minute has the fastest typing rate