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The rate of having a report ready is $10 per page for the first 50

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The rate of having a report ready is $10 per page for the first 50  [#permalink]

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New post 16 Jan 2018, 00:11
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A
B
C
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E

Difficulty:

  75% (hard)

Question Stats:

47% (01:38) correct 53% (01:36) wrong based on 76 sessions

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The rate of having a report ready is $10 per page for the first 50 pages and $7 per page thereafter. For revision, the rate is $4 per page for the first iteration and $3 per page for the second iteration. Ross ordered for a report of 120 pages He needed one iteration for 50 of those pages and two iterations for 20 pages. The remaining pages needed no revision. What was the bill Ross paid for the report?

A. $840
B. $1250
C. $1330
D. $1390
E. $2030

Source: Experts Global

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Re: The rate of having a report ready is $10 per page for the first 50  [#permalink]

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New post 16 Jan 2018, 06:50
pushpitkc wrote:
The rate of having a report ready is $10 per page for the first 50 pages and $7 per page thereafter. For revision, the rate is $4 per page for the first iteration and $3 per page for the second iteration. Ross ordered for a report of 120 pages He needed one iteration for 50 of those pages and two iterations for 20 pages. The remaining pages needed no revision. What was the bill Ross paid for the report?

A. $840
B. $1250
C. $1330
D. $1390
E. $2030

Source: Experts Global



so 120 pages.. first 50 page 10 and next \(70@7 = 50*10+70*7= 990\)..

Iteration....this is where one can go wrong
one iteration \(50@4=200\)
two iteration \(20@(4+3) = 20*7=140\)..

total = \(990+200+140=1330\)

C
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Re: The rate of having a report ready is $10 per page for the first 50  [#permalink]

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New post 16 Jan 2018, 10:54
pushpitkc wrote:
The rate of having a report ready is $10 per page for the first 50 pages and $7 per page thereafter. For revision, the rate is $4 per page for the first iteration and $3 per page for the second iteration. Ross ordered for a report of 120 pages He needed one iteration for 50 of those pages and two iterations for 20 pages. The remaining pages needed no revision. What was the bill Ross paid for the report?

A. $840
B. $1250
C. $1330
D. $1390
E. $2030

Source: Experts Global


Ready report is 10*50 + 7*70 = 990
First iteration is 4*50 = 200
Second iteration is 20*(4+3) = 140

Thus, total cost is $1330 , answer will be (B)
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Re: The rate of having a report ready is $10 per page for the first 50  [#permalink]

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New post 18 Jan 2018, 14:24
pushpitkc wrote:
The rate of having a report ready is $10 per page for the first 50 pages and $7 per page thereafter. For revision, the rate is $4 per page for the first iteration and $3 per page for the second iteration. Ross ordered for a report of 120 pages He needed one iteration for 50 of those pages and two iterations for 20 pages. The remaining pages needed no revision. What was the bill Ross paid for the report?

A. $840
B. $1250
C. $1330
D. $1390
E. $2030


For the first 50 pages of Rob’s report, he paid 10 x 50 = 500 dollars.

For the next 70 pages, he paid 7 x 70 = 490 dollars.

He paid 70 x 4 = 280 dollars for the first iteration of 70 pages.

He paid 20 x 3 = 60 for the second iteration of 20 pages.

In total Ross paid: 500 + 490 + 280 + 60 = 1,330 dollars,

Answer: C
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Re: The rate of having a report ready is $10 per page for the first 50  [#permalink]

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New post 23 May 2018, 15:44
1
chetan2u wrote:
pushpitkc wrote:
The rate of having a report ready is $10 per page for the first 50 pages and $7 per page thereafter. For revision, the rate is $4 per page for the first iteration and $3 per page for the second iteration. Ross ordered for a report of 120 pages He needed one iteration for 50 of those pages and two iterations for 20 pages. The remaining pages needed no revision. What was the bill Ross paid for the report?

A. $840
B. $1250
C. $1330
D. $1390
E. $2030

Source: Experts Global



so 120 pages.. first 50 page 10 and next \(70@7 = 50*10+70*7= 990\)..

Iteration....this is where one can go wrong
one iteration \(50@4=200\)
two iteration \(20@(4+3) = 20*7=140\)..

total = \(990+200+140=1330\)

C


Is it ok that it is not mentioned in a passage that 20 pages with 2 iterations were not from the set of 50 pages with 1 iteration?
Because if we do so, we get 1250 - option B.
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Re: The rate of having a report ready is $10 per page for the first 50 &nbs [#permalink] 23 May 2018, 15:44
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