Samuel took 30 minutes to finish his homework while Sarah took 1.3 hours to finish it. How many minutes faster did Samuel finish his homework than Sarah?
Since there are 60 minutes in 1 hour, then 1.3 hours is equal to 1.3 x 60 = <<1.3*60=78>>78 minutes.
Thus, Samuel is 78 – 30 = <<78-30=48>>48 minutes faster than Sarah.
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