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 By: achieve_goal (offline)  Saturday, February 18 2012 @ 06:24 AM CST (Read 732 times)
achieve_goal

Mrs lee had some red and green beads. 7/11 of the beads
were red and the rest were green. After giving away 105
red beads, the number of red beads left was half of the
number of green beads.
how many green beads did she have?

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Registered: 09/14/11
Posts: 102

 By: tlk (offline)  Saturday, February 18 2012 @ 07:59 AM CST
tlk

Green = 11u - 7u = 4u
Red beads left = 4u / 2 = 2u
Red beads given = 7u - 2u = 5u
5u = 105
1u = 105 / 5 = 21
Green = 21 x 4 = 84 (Ans)

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Registered: 10/21/11
Posts: 14

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