10-20 30 40 50
2 of 5
It takes one examiner 15 hours to mark 80 exam papers.
How l...
Mathematics, 17.02.2020 19:11 noahmace
10-20 30 40 50
2 of 5
It takes one examiner 15 hours to mark 80 exam papers.
How long should it take 5 examiners to mark 80 exam papers?
~
1
hours
Answers: 2
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