Mathematics, 18.09.2019 12:00 bryanawesome23

One person can do a certain job in fifteen minutes, and another person can do the same job in thirty minutes. how many minutes will it take them to do the job together?
5 min
10 min
20 min

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More questions: Mathematics Another questions

One person can do a certain job in fifteen minutes, and another person can do the same job in thirty minutes. how many minutes will it take them to do the job together? 5 min 10 min 20 min

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Another question on Mathematics

One person can do a certain job in fifteen minutes, and another person can do the same job in thirty minutes. how many minutes will it take them to do the job together?
5 min
10 min
20 min