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Pete works at three part-time jobs to make extra money. What are hisav

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Pete works at three part-time jobs to make extra money. What are hisav  [#permalink]

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New post 27 Mar 2017, 12:12
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A
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E

Difficulty:

  55% (hard)

Question Stats:

53% (01:14) correct 47% (00:55) wrong based on 33 sessions

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Pete works at three part-time jobs to make extra money. What are hisaverage earnings per hour?

(1) Pete earned $500 for 20 hours at the first job, $150 for 10 hours at the second job, and $100 for 5 hours at the third job.
(2) Pete earned an average of $25 per hour at the first job, $15 per hour at the second job, and $20 per hour at the third job.

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Re: Pete works at three part-time jobs to make extra money. What are hisav  [#permalink]

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New post 27 Mar 2017, 13:05
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Statement (1) Pete earned $500 for 20 hours at the first job, $150 for 10 hours at the second job, and $100 for 5 hours at the third job.


Job 1: $500 for 20 hours

Job 2: $150 for 10 hours

Job 3: $100 for 5 hours

Since we have the Total money Earned and Total hours worked, so we can find out the average earnings per hour. This statement is sufficient.

Statement (2) Pete earned an average of $25 per hour at the first job, $15 per hour at the second job, and $20 per hour at the third job.

This statement only gives the average earning of each job, but no information on the number of hours worked at each job. Hence this statement is not sufficient.

Answer is A
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Re: Pete works at three part-time jobs to make extra money. What are hisav  [#permalink]

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New post 27 Jul 2017, 04:56
SajjadAhmad wrote:
Pete works at three part-time jobs to make extra money. What are hisaverage earnings per hour?

(1) Pete earned $500 for 20 hours at the first job, $150 for 10 hours at the second job, and $100 for 5 hours at the third job.
(2) Pete earned an average of $25 per hour at the first job, $15 per hour at the second job, and $20 per hour at the third job.



AVg Earnings per hour= Total earnings from all the 3 jobs/ total no of hours worked at all the three jobs.

Hence only A.
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Re: Pete works at three part-time jobs to make extra money. What are hisav   [#permalink] 27 Jul 2017, 04:56
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Pete works at three part-time jobs to make extra money. What are hisav

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