To find the unit rate, we need to determine the number of words typed per minute.
Ima Smurf typed 120 words in 3 minutes. We can calculate the unit rate by dividing the total number of words by the total number of minutes:
\[ \text{Unit Rate} = \frac{\text{Total Words}}{\text{Total Minutes}} = \frac{120 \text{ words}}{3 \text{ minutes}} = 40 \text{ words per minute} \]
Thus, the ratio of the two measurements (words to minutes) can be expressed as:
\[ \text{Ratio} = 40 \text{ words} : 1 \text{ minute} \]
So the unit rate is 40 words per minute.
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