Mathematics, 12.01.2022 04:00 omar9844
Nikki and Kelly can create math problems for a particular course in 20 hours. Alone, Nikki can do write all of the problems 4 hours faster than Kelly could if she were to work alone. How long would it take each person to write the problems if they worked alone
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Nikki and Kelly can create math problems for a particular course in 20 hours. Alone, Nikki can do wr...
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