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Intern
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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There were 36.000 hardback copies of a certain novel sold [#permalink]
 11 Oct 2012, 09:33
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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Senior Manager
Joined: 28 Jun 2009
Posts: 457
Location: United States (MA)
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Re: There were 36.000 hardback copies of a certain novel sold be [#permalink]
12 Oct 2012, 11:30
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.
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Re: There were 36.000 hardback copies of a certain novel sold be
[#permalink]
12 Oct 2012, 11:30
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