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Mathematics, 21.08.2019 19:30 Mimical

Three friends use a groupon and rent an airbnb at $30 a night. they pay $10 each and go up to their rooms. the owner realized he charged too much and it was only supposed to be $25. he sends his kid to the house with $5. each of the people keeps $1 and they give the kid $2 as they can't share it. so now each person has paid $9 for the room (total $27) and the kid has $2 total of $29.

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