Mathematics, 07.06.2021 05:50 pchaneh31

Jack and Serena can write a lab report in 6 hours. If all people work at the same rate, how many hours would it take to write a lab report if Kay joins Jack and Serena? Giving out 25 points whoever answers.

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Jack and Serena can write a lab report in 6 hours. If all people work at the same rate, how many hou...

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