Mathematics, 27.04.2021 03:00 adlaremse2987

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 1 hour 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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