Mathematics, 19.02.2020 06:45, Marveon

Paulina gets on an elevator. At the first stop, 4 people get off and 3 get on. At the second stop, 5 people get off and one gets on. At the the third stop, Paulina gets off. If 4 people are still on the elevator when Paulina gets off, how many people were on the elevator when she got on?

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Paulina gets on an elevator. At the first stop, 4 people get off and 3 get on. At the second stop, 5...

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