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Quoc Tran Anh Le Coordinator

07/08/2018 at 02:13
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A increased by 30% = B
B decreased by 40% = C
C increased by 20% = D
What percent of B is D?


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    Dao Trong Luan Coordinator 07/08/2018 at 02:34

    With this post, we have:

    130%A = B

    60%B = C

    120%C = D

    => D = 60% of 120% of B

    => D = 72%B

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