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Mathematics, 03.10.2021 18:00 rattler6125

Two machines in a car parts factory mold different parts that will eventually be put together in an assembly plant. The first machine makes a part every 12 seconds, and
the second machine makes a part every 45 seconds. The quality control engineer
tests these parts each time they both come out of the machines at the same time.
How often does she test the parts? Show your work and express your answer
in minutes.

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