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Each writer for the local newspaper is paid as follows: a dollars for
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25 May 2021, 20:03
25 May 2021, 20:03
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Question Stats:
75% (01:50) correct
25% (01:53) wrong based on 16 sessions
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Each writer for the local newspaper is paid as follows: a dollars for each of the first n stories each month, and a + b dollars for each story thereafter, where a > b. How many more dollars will a writer who submits n + a stories in a month earn than a writer who submits n + b stories?
A. (a – b)( a + b + n)
B. a – b
C. a^2 – b^2
D. n( a – b)
E. an + bn – an
Kudos for the right answer and explanation
Question part of the project GRE Quantitative Reasoning Daily Challenge - (2021) EDITION
GRE - Math Book
A. (a – b)( a + b + n)
B. a – b
C. a^2 – b^2
D. n( a – b)
E. an + bn – an
Kudos for the right answer and explanation
Question part of the project GRE Quantitative Reasoning Daily Challenge - (2021) EDITION
GRE - Math Book
Re: Each writer for the local newspaper is paid as follows: a dollars for
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26 May 2021, 00:00
26 May 2021, 00:00
2
Writer with \(n+a\) stories a month
Money earned = \(na + a (a+b)\)
Writer with \(n+b\) stories a month
Money earned = \(na + b (a+b)\)
Difference = \(na + a (a+b)\) - \(na + b (a+b)\)
= \((a+b)(a-b)\)
= \(a^2 – b^2\)
Answer C
Money earned = \(na + a (a+b)\)
Writer with \(n+b\) stories a month
Money earned = \(na + b (a+b)\)
Difference = \(na + a (a+b)\) - \(na + b (a+b)\)
= \((a+b)(a-b)\)
= \(a^2 – b^2\)
Answer C
Re: Each writer for the local newspaper is paid as follows: a dollars for
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29 May 2021, 07:57
29 May 2021, 07:57
another merhod, given solution is bit complex for me.
