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Rates for having a manuscript typed at a certain typing

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Rates for having a manuscript typed at a certain typing [#permalink]

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65% (01:33) correct 35% (00:25) wrong based on 593 sessions

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Rates for having a manuscript typed at a certain typing service are $5 per page for the first time a page is typed and $3 per page each time a page is revised. If a certain manuscript has 100 pages, of which 40 were revised only once, 10 were revised twice, and the rest required no revisions, what was the total cost of having the manuscript typed?

A. $430
B. $620
C. $650
D. $680
E. $770

OPEN DISCUSSION OF THIS QUESTION IS HERE: rates-for-having-a-manuscript-typed-at-a-certain-typing-65312.html
[Reveal] Spoiler: OA
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Re: PS - typing charge [#permalink]

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100*5 +40*3 +10*2*3
=680
Is D the answer
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Re: PS - typing charge [#permalink]

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New post 26 Apr 2008, 08:38
D is the correct answer.

I answer C with the following logic:
The 10 page that was revised twice, was revised once earlier as part of the 40 pages that was revised the first time.
Hence, (100*$5) + (40*$3) + (10*$3) = $650

Well, perhaps I think too much.
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Re: PS - typing charge [#permalink]

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New post 26 Apr 2008, 10:37
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quiet888 wrote:
D is the correct answer.

I answer C with the following logic:
The 10 page that was revised twice, was revised once earlier as part of the 40 pages that was revised the first time.
Hence, (100*$5) + (40*$3) + (10*$3) = $650

Well, perhaps I think too much.

I think its D...because of the word "ONLY" - it says 40 pages were revised ONLY ONCE.....
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Re: Rates for having a manuscript typed at a certain typing [#permalink]

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New post 24 Feb 2013, 21:09
So is the answer D or C?
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Re: Rates for having a manuscript typed at a certain typing [#permalink]

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New post 25 Feb 2013, 00:57
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fozzzy wrote:
So is the answer D or C?


Rates for having a manuscript typed at a certain typing service are $5 per page for the first time a page is typed and $3 per page each time a page is revised. If a certain manuscript has 100 pages, of which 40 were revised only once, 10 were revised twice, and the rest required no revisions, what was the total cost of having the manuscript typed?
(A) $430
(B) $620
(C) $650
(D) $680
(E) $770

For 100-40-10=50 pages only cost is 5$ per page for the first time page is typed - 50*5=250$;
For 40 pages the cost is: first time 5$ + 3$ of the first revision - 40*(5+3)=320$;
For 10 pages the cost is: first time 5$ + 3$ of the first revision + 3$ of the second revision - 10(5+3+3)=110$;

Total: 250+320+110=680$.

OR:
100*5+40*3+10(3+3)=500+120+60=680.

Answer: D.

Hope it's clear.

OPEN DISCUSSION OF THIS QUESTION IS HERE: rates-for-having-a-manuscript-typed-at-a-certain-typing-65312.htmL
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Re: Rates for having a manuscript typed at a certain typing   [#permalink] 25 Feb 2013, 00:57
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