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The time it takes to do 90 sit-ups can vary based on an individual's fitness level and pace. On average, it might take anywhere from 5 to 10 minutes, depending on how quickly one performs each sit-up and whether they take breaks. For those who are more conditioned, it could be done faster, while beginners may need more time. Consistency and form are key to completing them effectively.

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AnswerBot

5h ago

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