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# Elana was working to code protocols for computer processing. She did

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Elana was working to code protocols for computer processing. She did [#permalink]

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Updated on: 10 Oct 2016, 22:26
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Question Stats:

78% (02:09) correct 22% (02:14) wrong based on 129 sessions

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Elana was working to code protocols for computer processing. She did 11/18 of the job and allowed Andy to finish it. They both work at the same rate and receive the same hourly pay. If the difference between the amounts they were paid was $154, what was the total amount the two were paid for the entire coding job? a)$252.00
b) $269.50 c)$369.00
d) $423.50 e)$693.00

Originally posted by SW4 on 10 Oct 2016, 14:05.
Last edited by Bunuel on 10 Oct 2016, 22:26, edited 2 times in total.
Renamed the topic and edited the question.
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Re: Elana was working to code protocols for computer processing. She did [#permalink]

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10 Oct 2016, 14:22
1
SW4 wrote:
Elana was working to code protocols for computer processing. She did of the job and allowed Andy to finish it. They both work at the same rate and receive the same hourly pay. If the difference between the amounts they were paid was $154, what was the total amount the two were paid for the entire coding job? a)$252.00
b) $269.50 c)$369.00
d) $423.50 e)$693.00

THERE SEEMS SOME MISSING INFORMATION IN THE HIGHLIGHTED PART

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Re: Elana was working to code protocols for computer processing. She did [#permalink]

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10 Oct 2016, 22:27
Abhishek009 wrote:
SW4 wrote:
Elana was working to code protocols for computer processing. She did of the job and allowed Andy to finish it. They both work at the same rate and receive the same hourly pay. If the difference between the amounts they were paid was $154, what was the total amount the two were paid for the entire coding job? a)$252.00
b) $269.50 c)$369.00
d) $423.50 e)$693.00

THERE SEEMS SOME MISSING INFORMATION IN THE HIGHLIGHTED PART

Renamed the topic and edited the question.
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Re: Elana was working to code protocols for computer processing. She did [#permalink]

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10 Oct 2016, 22:38
Elena did 11/18 of The job so 7/18 was done by Andy. As 11/18+7/18=1
Now difference between work done is 11/18-7/18=4/18.
So for this 4/18 work the difference is 154.
Hence x= 154*18/4 = 693
Option - C.

Sent from my A1601 using GMAT Club Forum mobile app
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Elana was working to code protocols for computer processing. She did [#permalink]

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Updated on: 24 Oct 2016, 08:06
2
SW4 wrote:
Elana was working to code protocols for computer processing. She did 11/18 of the job and allowed Andy to finish it. They both work at the same rate and receive the same hourly pay. If the difference between the amounts they were paid was $154, what was the total amount the two were paid for the entire coding job? a)$252.00
b) $269.50 c)$369.00
d) $423.50 e)$693.00

Let the total work be 18
Elana completed 11 units
Andy completed 7 units

Quote:
the difference between the amounts they were paid was $154 The difference in pay is due to the fact that they completed different units of wok... So, 4units diff ----$154
Or, 1 unit diff ---- $$$\frac{154}{4}$$ And, 18 units -----$$$\frac{154}{4}$$*18 = $693 Hence answer will be (E)$693

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Originally posted by Abhishek009 on 11 Oct 2016, 00:10.
Last edited by Abhishek009 on 24 Oct 2016, 08:06, edited 1 time in total.
TYPO in 22
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Re: Elana was working to code protocols for computer processing. She did [#permalink]

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24 Oct 2016, 02:06
Abhishek009 wrote:
SW4 wrote:
Elana was working to code protocols for computer processing. She did 11/18 of the job and allowed Andy to finish it. They both work at the same rate and receive the same hourly pay. If the difference between the amounts they were paid was $154, what was the total amount the two were paid for the entire coding job? a)$252.00
b) $269.50 c)$369.00
d) $423.50 e)$693.00

Let the total work be 18
Elana completed 11 units
Andy completed 7 units

Quote:
the difference between the amounts they were paid was $154 The difference in pay is due to the fact that they completed different units of wok... So, 4units diff ----$154
Or, 1 unit diff ---- $$$\frac{154}{4}$$ And, 22 units -----$$$\frac{154}{4}$$*18 = $693 Hence answer will be (E)$693

Where do you get the number 4?
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Re: Elana was working to code protocols for computer processing. She did [#permalink]

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24 Oct 2016, 02:25
Abhishek009 wrote:
SW4 wrote:
Elana was working to code protocols for computer processing. She did 11/18 of the job and allowed Andy to finish it. They both work at the same rate and receive the same hourly pay. If the difference between the amounts they were paid was $154, what was the total amount the two were paid for the entire coding job? a)$252.00
b) $269.50 c)$369.00
d) $423.50 e)$693.00

Let the total work be 18
Elana completed 11 units
Andy completed 7 units

Quote:
the difference between the amounts they were paid was $154 The difference in pay is due to the fact that they completed different units of wok... So, 4units diff ----$154
Or, 1 unit diff ---- $$$\frac{154}{4}$$ And, 22 units -----$$$\frac{154}{4}$$*18 = $693 Hence answer will be (E)$693

I guess there is a typo you used the correct value in calculation but in the highlighted part it should be 18 units instead of 22.
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Re: Elana was working to code protocols for computer processing. She did [#permalink]

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24 Oct 2016, 02:28
1
SamsterZ wrote:
Abhishek009 wrote:
SW4 wrote:
Elana was working to code protocols for computer processing. She did 11/18 of the job and allowed Andy to finish it. They both work at the same rate and receive the same hourly pay. If the difference between the amounts they were paid was $154, what was the total amount the two were paid for the entire coding job? a)$252.00
b) $269.50 c)$369.00
d) $423.50 e)$693.00

Let the total work be 18
Elana completed 11 units
Andy completed 7 units

Quote:
the difference between the amounts they were paid was $154 The difference in pay is due to the fact that they completed different units of wok... So, 4units diff ----$154
Or, 1 unit diff ---- $$$\frac{154}{4}$$ And, 22 units -----$$$\frac{154}{4}$$*18 = $693 Hence answer will be (E)$693

Where do you get the number 4?

Lets say the complete job is equal to 1 out of which Elena did $$\frac{11}{18}$$ of the job.

So, we know that Andy did 1-$$\frac{11}{18}$$ of the job = $$\frac{7}{18}$$

We are given that the difference between their earning is $154 which is going to be difference in work into hourly pay. Difference in work = $$\frac{11}{18}$$ - $$\frac{7}{18}$$ = $$\frac{4}{18}$$ HTH Intern Joined: 25 Aug 2016 Posts: 13 Re: Elana was working to code protocols for computer processing. She did [#permalink] ### Show Tags 24 Oct 2016, 03:40 gauravk wrote: Lets say the complete job is equal to 1 out of which Elena did $$\frac{11}{18}$$ of the job. So, we know that Andy did 1-$$\frac{11}{18}$$ of the job = $$\frac{7}{18}$$ We are given that the difference between their earning is$154 which is going to be difference in work into hourly pay.

Difference in work = $$\frac{11}{18}$$ - $$\frac{7}{18}$$ = $$\frac{4}{18}$$

HTH
'

Aah, I understand! Thank you for you explanation
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Re: Elana was working to code protocols for computer processing. She did [#permalink]

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24 Oct 2016, 08:11
SamsterZ wrote:
Where do you get the number 4?

Its from here -
Attachment:

Capture.PNG [ 12.36 KiB | Viewed 1149 times ]

11 - 7 = 4
gauravk wrote:
I guess there is a typo you used the correct value in calculation but in the highlighted part it should be 18 units instead of 22.

Indeed it was a TYPO, I have edited my post...

I sincerely apologize for the same...
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Abhishek....

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Posts: 114
Re: Elana was working to code protocols for computer processing. She did [#permalink]

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02 Nov 2016, 10:26
SW4 wrote:
Elana was working to code protocols for computer processing. She did 11/18 of the job and allowed Andy to finish it. They both work at the same rate and receive the same hourly pay. If the difference between the amounts they were paid was $154, what was the total amount the two were paid for the entire coding job? a)$252.00
b) $269.50 c)$369.00
d) $423.50 e)$693.00

Well I am having some issues with this question...I guess I am misreading the question but not sure..I think we have to find the total wages given to both andy and elena according to the hours they have worked..

This is my approach

Elena did 11/18 of her work therefore the remaining work i.e. 7/18 was done by Andy.
Let x be their hourly wages (same for both as given in the question)
Difference in work =11/18-7/18=4/18
OR
Difference in time=18/4 hours
if x is the wage for one hour
then 18x/4 is the difference of wages for x hours which is given as $154 to us => 18x/4=154 x=308/9 TOTAL WAGES PAID WILL BE (12/11 + 18/7)*309/9 PLEASE TELL ME WHERE I AM WRONG Board of Directors Status: QA & VA Forum Moderator Joined: 11 Jun 2011 Posts: 3639 Location: India GPA: 3.5 WE: Business Development (Commercial Banking) Elana was working to code protocols for computer processing. She did [#permalink] ### Show Tags 02 Nov 2016, 10:44 1 suramya26 wrote: Well I am having some issues with this question...I guess I am misreading the question but not sure..I think we have to find the total wages given to both andy and elena according to the hours they have worked.. This is my approach Elena did 11/18 of her work therefore the remaining work i.e. 7/18 was done by Andy. Let x be their hourly wages (same for both as given in the question) Difference in work =11/18-7/18=4/18 OR Difference in time=18/4 hours if x is the wage for one hour then 18x/4 is the difference of wages for x hours which is given as$154 to us

=> 18x/4=154
x=308/9
TOTAL WAGES PAID WILL BE
(12/11 + 18/7)*309/9

PLEASE TELL ME WHERE I AM WRONG

Lets try -

SW4 wrote:
Elana was working to code protocols for computer processing. She did 11/18 of the job and allowed Andy to finish it. They both work at the same rate and receive the same hourly pay. If the difference between the amounts they were paid was $154, what was the total amount the two were paid for the entire coding job? Let total work be 1 Elana did 11/18 Andy did 7/18 Thus share of wages will be in the ratio of work done by them.... Ratio of their work is as follows - Elana : Andy = 11 : 7 and the total work is 18 Proportion of difference in work = Proportion of Difference in pay So, 4 =$ 154

Or, 1 = $154/4 And Total pay = 154/4*18 =>$ 693

Hence answer will be (E) $693 The wage difference is not with respect to time , correct approach will be with respect to work done.. ( Errorr is highlighted in red ) Further explanation as provide to you via PM Wages/Salary can be of 2 types ( Something You will certainly admit ) - 1. Hourly Wage payment System ( Most White collar Jobs ) 2. Unit of Work Done ( Most Blue collar Jobs ) Here it is given the part of job completed by A and B , both have diff efficiency.. Suppose total Work is 18 units Efficiency of A = 11 and Efficiency of B = 7 Now, tell me , whom will you give more money A or B ( According to the amount of work completed ) Certainly A !!! Continuing with the same example - Time Taken by A = 18/11 = 1.63 Hours Time Taken by B = 18/7 = 2.57 Hours Now, tell me , whom will you give more money A or B ??? B is inefficient , straightay, he takes more time to complete less amount of work than A... Hence Hourly wage approach is not suited here, hope this helps.. _________________ Thanks and Regards Abhishek.... PLEASE FOLLOW THE RULES FOR POSTING IN QA AND VA FORUM AND USE SEARCH FUNCTION BEFORE POSTING NEW QUESTIONS How to use Search Function in GMAT Club | Rules for Posting in QA forum | Writing Mathematical Formulas |Rules for Posting in VA forum | Request Expert's Reply ( VA Forum Only ) Current Student Joined: 26 Jan 2016 Posts: 110 Location: United States GPA: 3.37 Re: Elana was working to code protocols for computer processing. She did [#permalink] ### Show Tags 02 Nov 2016, 11:44 Elena did 11/18 which means that Andrew did 7/18. They both earn the same hourly rate. The difference between the work they did is 4/18. We know that 4/18 equals$154 because that is the difference in pay. Divide $154 by 4 so we can see how much 1/11th of the job is worth.$154/4=\$38.5

11*38.5=423.5 (Elena's portion)
7*38.5 =269.5 (Andrew's portion)
Total together is 693 or E
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Re: Elana was working to code protocols for computer processing. She did [#permalink]

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Re: Elana was working to code protocols for computer processing. She did   [#permalink] 07 Jul 2018, 03:25
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