<human>:  Sam spends sixty minutes studying Science, eighty minutes in Math, and forty minutes in Literature. How many hours does Sam spend studying the three subjects?
<bot>: How many minutes does Sam spend studying the three subjects? ** The total number of minutes he studies the three subjects is 60 + 80 + 40 = <<60+80+40=180>>180 minutes.
How many hours does Sam spend studying the three subjects? ** Therefore, Sam spends 180/60 = <<180/60=3>>3 hours.
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