Books sold

[sjd00d]

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

Thought this was an easy one but i guess not coz my answer E doesn't match the official answer C.

used this to arrive at E.

36k+h+9(36+h)=441k
where h = hardcover copies sold after they started selling paperbacks

[Neo_On_A_Mission]

The equation should be
36000+H+9H=441000 Where H=hardback copies

So H=40500 and Paperback copies(P) = 9*40500 = 364,500

[bose]

x-hardback copies
9x+x=10x=441000-36000
find 9x
ans 364500

[sjd00d]

Thanks for the response folks. I misread the question as I very often do.