5 teachers can mark 60 exams papers in 4 hours how long will it take 3 teachers to mark all 60 papers

Answer 1

It will take 20 teacher-hours to do the job
So for 3 teachers, it will take 20/3 hours to do the job of marking the 60 papers

20/3 hrs = 6 2/3 hrs or 6 hours and 40 minutes

Answer 2

Five teachers can mark 60 exams pappers in 4 hours.how long will it take 3 teachers to mark all 60 pappers?

Answer 3

Pls show workings