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Mathematics, 27.04.2021 03:10 jass624
Mr. Tough can grade the final exams in 12 hours. His assistant, Ms. Nice, can grade the same exams in 15 hours. What fraction of the exams can mr tough and ms nice grade in n hours if they work together?
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Mr. Tough can grade the final exams in 12 hours. His assistant, Ms. Nice, can grade the same exams i...
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