Final answer:
Naima takes 120 jiffies to type each word.
Step-by-step explanation:
We must convert Naima's typing speed from words per minute to words per second in order to determine how many jiffies it takes her to type a word. Naima can type 50–60 words per minute because a minute consists of 60 seconds. The next task is to calculate the number of seconds required to enter a single word. Naima can type 50/60 words per second, hence one word takes 1/(50/60) seconds to type. Simplifying, this comes out to 60/50 seconds, or 6/5 seconds. Lastly, we divide the time in seconds by the jiffy value of 1/100 s to determine how many jiffies it takes to type a single word. Naima must thus type each word in (6/5)/(1/100) = 600/5 = 120 jiffies.