If a guy is performing 10 perfect pull-ups, then how much can he

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Is it possible to do 75 pull-ups in a row? - Quora

Pull Up Calculator: How Many Pull Ups You Should Be Able to Do

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How many people can actually do 10+ pull-ups? - Quora

Will a 5x5 strength program help me do more pull ups? - Quora

Will doing 100 pull ups and 100 dips as well as gaining 10 kilos