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Two journalists have 8 hours in which to copy edit a total of 100 arti 08 Jul 2019, 02:54
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Two journalists have 8 hours in which to copy edit a total of 100 articles. If Journalist A copy edits at a steady rate of 3.5 articles per hour, how many articles per hour must Journalist B copy edit in order to complete the assignment on time?

(A) 12.5
(B) 9
(C) 8
(D) 4.5
(E) 3
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B
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Two journalists have 8 hours in which to copy edit a total of 100 arti 08 Jul 2019, 03:02
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Bunuel
Two journalists have 8 hours in which to copy edit a total of 100 articles. If Journalist A copy edits at a steady rate of 3.5 articles per hour, how many articles per hour must Journalist B copy edit in order to complete the assignment on time?

(A) 12.5
(B) 9
(C) 8
(D) 4.5
(E) 3
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Total time = 8 hrs.

Total Articles = 100

Work done by A = 3.5 * 8 = 28.

Work must be done by B = 72 articles.

Required Time for B : 72 / 8 = 9 articles / hr.

B is the correct answer.
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Two journalists have 8 hours in which to copy edit a total of 100 arti 08 Jul 2019, 03:04
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Bunuel
Two journalists have 8 hours in which to copy edit a total of 100 articles. If Journalist A copy edits at a steady rate of 3.5 articles per hour, how many articles per hour must Journalist B copy edit in order to complete the assignment on time?

(A) 12.5
(B) 9
(C) 8
(D) 4.5
(E) 3
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Speed of A = 3.5 per hour
In 8 hours = 3.5*8 = 28 articles
—> Remaining articles = 100 - 28 = 72 articles
—> Required speed of B = 72/8 = 9 articles per hour

IMO Option C

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Two journalists have 8 hours in which to copy edit a total of 100 arti 08 Jul 2019, 06:41
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They need to copy edit 100/8 = 12.5 articles per hour to finish the job. If A is editing 3.5 per hour, B must edit the rest, or 9 per hour.
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Two journalists have 8 hours in which to copy edit a total of 100 arti 08 Jul 2019, 09:06
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their combined rate is \(\frac{100}{8}\) = 12.5

journalist B rate = combined rate - journalist A's rate
= 12.5 - 3.5
= 9 (B)
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Two journalists have 8 hours in which to copy edit a total of 100 arti 08 Jul 2019, 10:23
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Bunuel
Two journalists have 8 hours in which to copy edit a total of 100 articles. If Journalist A copy edits at a steady rate of 3.5 articles per hour, how many articles per hour must Journalist B copy edit in order to complete the assignment on time?

(A) 12.5
(B) 9
(C) 8
(D) 4.5
(E) 3
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rate of A ; would help 3.5*8 ; 28 articles so
100-28 ; 72 articles rate of B must be 72/8 ; 9
IMO B
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Two journalists have 8 hours in which to copy edit a total of 100 arti 09 Jul 2019, 02:36
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Bunuel
Two journalists have 8 hours in which to copy edit a total of 100 articles. If Journalist A copy edits at a steady rate of 3.5 articles per hour, how many articles per hour must Journalist B copy edit in order to complete the assignment on time?

(A) 12.5
(B) 9
(C) 8
(D) 4.5
(E) 3
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Total Work = 100 [A+B]
Total Time = 8 [A+B]
A's part
Amount = Rate * Time
A = 3.5 * 8 = 28 Articles

100 - 28 = 72 Articles for B to be completed .
Given 8 hours for B as well ,
72/8 = 9 Articles Per Hour

B is the answer
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Two journalists have 8 hours in which to copy edit a total of 100 arti 11 Jul 2019, 19:57
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Bunuel
Two journalists have 8 hours in which to copy edit a total of 100 articles. If Journalist A copy edits at a steady rate of 3.5 articles per hour, how many articles per hour must Journalist B copy edit in order to complete the assignment on time?

(A) 12.5
(B) 9
(C) 8
(D) 4.5
(E) 3
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We can create the equation:

3.5(8) + 8n = 100

28 + 8n = 100

8n = 72

n = 9

Answer: B
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Two journalists have 8 hours in which to copy edit a total of 100 arti 11 Jul 2019, 22:48
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Bunuel
Two journalists have 8 hours in which to copy edit a total of 100 articles. If Journalist A copy edits at a steady rate of 3.5 articles per hour, how many articles per hour must Journalist B copy edit in order to complete the assignment on time?

(A) 12.5
(B) 9
(C) 8
(D) 4.5
(E) 3
Show more

Given:
Task to be done = 100 articles / 8 hours = 12.5 articles / hour
Journalist A copy edits at a steady rate of 3.5 articles per hour

Question:
how many articles per hour must Journalist B copy edit in order to complete the assignment on time?

Journalist B must edit = 12.5 - 3.5 = 9 articles / hour

IMO B
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Two journalists have 8 hours in which to copy edit a total of 100 arti 10 Feb 2022, 00:31
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