Mathematics, 02.06.2021 18:40 XAINEE

One robot can do a task in 18 min. The second robot, working alone, can do the task in 15 min. About how many minutes will it take the the two robots, working together, to do the task?

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One robot can do a task in 18 min. The second robot, working alone, can do the task in 15 min. About...

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