Mathematics
Mathematics, 06.10.2019 13:30, tangia

Sofia can type the work in 10 hours. noga can do it in 15 hours. they work together for 4 hours. then sofia left and noga finished the job. how long did it take to do the entire job?

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Sofia can type the work in 10 hours. noga can do it in 15 hours. they work together for 4 hours. the...

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