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# If y is decreased by 20% and then increased by 60%, what is

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Current Student
Joined: 06 Sep 2013
Posts: 1988

Kudos [?]: 708 [0], given: 355

Concentration: Finance
If y is decreased by 20% and then increased by 60%, what is [#permalink]

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20 Sep 2013, 17:18
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100% (00:27) correct 0% (00:00) wrong based on 4 sessions

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If y is decreased by 20% and then increased by 60%, what is the new number, expressed in terms of y?

OA is
[Reveal] Spoiler:
1.28

Kudos [?]: 708 [0], given: 355

Math Expert
Joined: 02 Sep 2009
Posts: 41690

Kudos [?]: 124557 [0], given: 12079

Re: If y is decreased by 20% and then increased by 60%, what is [#permalink]

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20 Sep 2013, 17:29
jlgdr wrote:
If y is decreased by 20% and then increased by 60%, what is the new number, expressed in terms of y?

OA is
[Reveal] Spoiler:
1.28

x = y*0.8*1.6 = 1.28y.
_________________

Kudos [?]: 124557 [0], given: 12079

Re: If y is decreased by 20% and then increased by 60%, what is   [#permalink] 20 Sep 2013, 17:29
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