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Mathematics, 17.04.2021 01:30 julionavedo21

A machine can grade 30 tests in 2 minutes. At this rate, how long will it take the machine to grade 135 tests? 8 minutes

9 minutes

10 minutes

12 minutes

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Answers: 2

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A machine can grade 30 tests in 2 minutes. At this rate, how long will it take the machine to grade...
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