A factory produces 2500 units of product A in 8 hours. How long will it take to produce 3750 units at the same production rate?
First, let's find the production rate per hour:

Production rate = Total units produced / Time taken
                        = 2500 units / 8 hours
                        = 312.5 units/hour

Now, we need to find how long it takes to produce 3750 units at this rate. We can use the formula:

Time = Units required / Production rate
         = 3750 units / 312.5 units/hour
         = 12 hours

So, it will take 12 hours to produce 3750 units at the same production rate.