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Luisa has c more children than Jenna has, and together they have a tot

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Math Expert
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V
Joined: 02 Sep 2009
Posts: 61245
Luisa has c more children than Jenna has, and together they have a tot  [#permalink]

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New post 21 Aug 2019, 20:14
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

84% (00:57) correct 16% (01:21) wrong based on 25 sessions

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Joined: 19 Jan 2019
Posts: 110
Luisa has c more children than Jenna has, and together they have a tot  [#permalink]

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New post 21 Aug 2019, 21:09
Jenna = j children
Luisa = (j+c) children
together they have a total of d children.... j + j + c = d => 2j+c=d =>2j=d-c
j=(d-c)/2 .... A
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Luisa has c more children than Jenna has, and together they have a tot   [#permalink] 21 Aug 2019, 21:09
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Luisa has c more children than Jenna has, and together they have a tot

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