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Mathematics 12 Online
OpenStudy (goformit100):

Barbie's bag is half full with 30 tennis balls in it. If she takes half of the balls from Ken's bag, then her bag is two-thirds full. The original number of tennis balls in Ken's bag was (A) 10 (B) 20 (C) 30 (D) 40 (E) 60

OpenStudy (anonymous):

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OpenStudy (anonymous):

So B

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