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# when added 10X, the resulting figure is (5y+1) times of the

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VP
Joined: 25 Nov 2004
Posts: 1481

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when added 10X, the resulting figure is (5y+1) times of the [#permalink]

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17 Feb 2005, 22:23
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when added 10X, the resulting figure is (5y+1) times of the original value. what is the original value in terms of x and y?

Kudos [?]: 126 [0], given: 0

Manager
Joined: 11 Jan 2005
Posts: 101

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

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17 Feb 2005, 22:34
according to my understanding :

z: original value

z+ 10x = (5y+1)z
10x-5yz=0

z = 2x/y

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VP
Joined: 13 Jun 2004
Posts: 1112

Kudos [?]: 51 [0], given: 0

Location: London, UK
Schools: Tuck'08

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17 Feb 2005, 22:49
Same as above...
a+10x = 5ya + a
10x = 5ya ; a = 2x/y

Kudos [?]: 51 [0], given: 0

Manager
Joined: 15 Feb 2005
Posts: 245

Kudos [?]: 8 [0], given: 0

Location: Rockville

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18 Feb 2005, 09:49
2x/y
(same reasoning)
unless there is something missing in the question

Kudos [?]: 8 [0], given: 0

18 Feb 2005, 09:49
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