A person who picks up cigarette butts from the streets finds that he can roll a new cigarette from the tobacco of seven butts. One Saturday he picks up forty-nine butts and on the Sunday decides to smoke all the cigarettes he can make from them. How many cigarettes did he smoke?

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ANSWER

8 (He makes 7 new cigarettes from the 49 butts found, but after smoking these this creates 7 new butts so he can make another one.)

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