Mathematics, 09.05.2021 02:30 AniyaT05

If Ricky does a job in 21 hours less time than Valerie, and they can do the job together in 10 hours, how long will it take each to do the job alone?

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If Ricky does a job in 21 hours less time than Valerie, and they can do the job together in 10 hours...

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If Ricky does a job in 21 hours less time than Valerie, and they can do the job together in 10 hours, how long will it take each to do the job alone?​

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If Ricky does a job in 21 hours less time than Valerie, and they can do the job together in 10 hours, how long will it take each to do the job alone?