Mathematics, 05.10.2019 03:00 jsmn7438

One person can do a certain job in twenty-one minutes, and another person can do the same job in twenty-eight minutes. how many minutes will it take them to do the job together?

6 min
12 min
24 min

Answers: 1

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More questions: Mathematics Another questions

One person can do a certain job in twenty-one minutes, and another person can do the same job in twenty-eight minutes. how many minutes will it take them to do the job together? 6 min 12 min 24 min

Answers

Another question on Mathematics

One person can do a certain job in twenty-one minutes, and another person can do the same job in twenty-eight minutes. how many minutes will it take them to do the job together?

6 min
12 min
24 min