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Mathematics 8 Online
OpenStudy (cherryfrost27):

Arthur and sam shared some postcards. If arthur gave 20 post cards to sam, they would have the same number of post cards , if sam gave arthur 10 post cards, the ratio of the number of postcards arthur had to the number of postcards sam would become 2:1 how many postcards did arthur have in the end?

OpenStudy (cherryfrost27):

@AloneS

OpenStudy (cherryfrost27):

@Benji

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