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There were 36.000 hardback copies of a certain novel sold

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Joined: 11 Jul 2011
Posts: 19
Location: India
Concentration: Entrepreneurship, Marketing
GMAT Date: 03-08-2013
WE: Manufacturing and Production (Manufacturing)
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Kudos [?]: 8 [0], given: 6

There were 36.000 hardback copies of a certain novel sold [#permalink] New post 11 Oct 2012, 08:33
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There were 36.000 hardback copies of a certain novel sold before the paperback version was issued. From the time the first paperback copy was sold until the last copy of the novel was sold. 9 times as many paperback copies as hardback copies were sold. If a total of 441.000 copies of the novel were sold in all, how many paperback copies were sold?
(A) 45.000
(B) 360.000
(C) 364.500
(D) 392.000
(E) 396.900
iam getting d were am i getting wrong help me
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Joined: 28 Jun 2009
Posts: 454
Location: United States (MA)
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Re: There were 36.000 hardback copies of a certain novel sold be [#permalink] New post 12 Oct 2012, 10:30
Ans is C.

Given :

There were 36.000 hardback copies of a certain novel sold before the paperback version was issued. -> H1 = 36 K

From the time the first paperback copy was sold until the last copy of the novel was sold, 9 times as many paperback copies as hardback copies were sold. -> P = 9H2

total of 441.000 copies of the novel were sold in all -> H1 + P + H2 = 441K

Solving,

H1 + P + H2 = 441K ........................( H1 = 36 K)
P + H2 = 441K - 36K = 405K
9H2 + H2 = 405K.............................(P = 9H2)
H2 = 40.5K

Total hardback = H1 + H2 = 36K + 40.5K = 76.5K
P = total - total hardback
P = 441 - 76.5K
P = 364.5K

C.
Re: There were 36.000 hardback copies of a certain novel sold be   [#permalink] 12 Oct 2012, 10:30
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