mpreciado1 mpreciado1
  • 01-09-2017
  • Mathematics
contestada

If it takes about 20 minutes to grade a student paper how long in hours does it take to grade palers for a class of 25 people

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jzubov
jzubov jzubov
  • 01-09-2017
20X25=500mins
500/60 (mins in a hour)=8.33 hours

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