To find the unit rate of computers produced per day based on the given data:
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From the information provided:
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In 3 days, 36 computers are produced. Therefore, the rate per day is: \[ \text{Rate for 3 days} = \frac{36 \text{ computers}}{3 \text{ days}} = 12 \text{ computers per day} \]
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In 4 days, 48 computers are produced. Therefore, the rate per day is: \[ \text{Rate for 4 days} = \frac{48 \text{ computers}}{4 \text{ days}} = 12 \text{ computers per day} \]
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In 5 days, 60 computers are produced. Therefore, the rate per day is: \[ \text{Rate for 5 days} = \frac{60 \text{ computers}}{5 \text{ days}} = 12 \text{ computers per day} \]
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Conclusion: All calculations confirm that the unit rate of computers produced per day is consistent.
Therefore, the unit rate is 12 computers per day.