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# Last week Chris earned x dollars per hour for the first 40 hours worke

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Last week Chris earned x dollars per hour for the first 40 hours worke [#permalink]

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17 Jun 2017, 09:54
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Last week Chris earned x dollars per hour for the first 40 hours worked plus 22 dollars per hour for each hour worked beyond 40 hours. If last week Chris earned a total of 816 dollars by working 48 hours, what is the value of x ?

A. 13
B. 14
C. 15
D. 16
E. 17
[Reveal] Spoiler: OA

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Last week Chris earned x dollars per hour for the first 40 hours worke [#permalink]

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17 Jun 2017, 09:59
AbdurRakib wrote:
Last week Chris earned x dollars per hour for the first 40 hours worked plus 22 dollars per hour for each hour worked beyond 40 hours. If last week Chris earned a total of 816 dollars by working 48 hours, what is the value of x ?

A. 13
B. 14
C. 15
D. 16
E. 17

Given Chris earned x dollars per hour for the first 40 hours worked plus 22 dollars per hour for each hour worked beyond 40 hours.

Chris worked for 48 hours.

Therefore Chris earned in 8 extra hours $$= 22*8 = 176$$

Chris earned a total of 816 dollars.

$$816 = 40x + 176$$

$$40x = 816 - 176 = 640$$

$$x = \frac{640}{40} = 16$$. Answer (D)...

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Re: Last week Chris earned x dollars per hour for the first 40 hours worke [#permalink]

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17 Jun 2017, 10:13
1
KUDOS
AbdurRakib wrote:
Last week Chris earned x dollars per hour for the first 40 hours worked plus 22 dollars per hour for each hour worked beyond 40 hours. If last week Chris earned a total of 816 dollars by working 48 hours, what is the value of x ?

A. 13
B. 14
C. 15
D. 16
E. 17

$$816 = 40*x + 22*8$$

Or, $$816 = 40x + 176$$

Or, $$816 = 40x + 176$$

Or, $$40x = 640$$

Or, $$x = 16$$

Thus, answer must be (D) 16

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Re: Last week Chris earned x dollars per hour for the first 40 hours worke [#permalink]

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17 Jun 2017, 10:48
Nice question.

Here is what I did for this one =>

Number of hours => 48 => 40+8
Hence the total income => 40x+22*8 which is equal to 816

Hence 40x+22*8=816
x=16

Smash that D.

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Joined: 06 Jul 2016
Posts: 437
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Re: Last week Chris earned x dollars per hour for the first 40 hours worke [#permalink]

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08 Aug 2017, 06:59
1
KUDOS
AbdurRakib wrote:
Last week Chris earned x dollars per hour for the first 40 hours worked plus 22 dollars per hour for each hour worked beyond 40 hours. If last week Chris earned a total of 816 dollars by working 48 hours, what is the value of x ?

A. 13
B. 14
C. 15
D. 16
E. 17

$x per hour - 40 hours$ 22 per hour - Every subsequent hour
$816 - 48 hours => 40x + 22*8 = 816 => x = 16 D is the answer. _________________ Put in the work, and that dream score is yours! Target Test Prep Representative Status: Founder & CEO Affiliations: Target Test Prep Joined: 14 Oct 2015 Posts: 2069 Location: United States (CA) Re: Last week Chris earned x dollars per hour for the first 40 hours worke [#permalink] ### Show Tags 15 Nov 2017, 15:52 AbdurRakib wrote: Last week Chris earned x dollars per hour for the first 40 hours worked plus 22 dollars per hour for each hour worked beyond 40 hours. If last week Chris earned a total of 816 dollars by working 48 hours, what is the value of x ? A. 13 B. 14 C. 15 D. 16 E. 17 We can create the equation: 40x + 22(48 - 40) = 816 40x + 22(8) = 816 40x + 176 = 816 40x = 640 x = 16 Answer: D _________________ Scott Woodbury-Stewart Founder and CEO GMAT Quant Self-Study Course 500+ lessons 3000+ practice problems 800+ HD solutions EMPOWERgmat Instructor Status: GMAT Assassin/Co-Founder Affiliations: EMPOWERgmat Joined: 19 Dec 2014 Posts: 10734 Location: United States (CA) GMAT 1: 800 Q51 V49 GRE 1: 340 Q170 V170 Re: Last week Chris earned x dollars per hour for the first 40 hours worke [#permalink] ### Show Tags 20 Nov 2017, 17:07 1 This post received KUDOS Expert's post Hi All, We're told that Chris earned$X per hour for the first 40 hours worked plus 22 dollars per hour for each hour worked beyond 40 hour and that Chris earned a total of 816 dollars by working 48 hours last week. We're asked for the value of x ?

With the given information, we can create the following equation (and solve):
40X + 8(22) = 816
40X + 176 = 816
40X = 640
X = 16

[Reveal] Spoiler:
D

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Re: Last week Chris earned x dollars per hour for the first 40 hours worke   [#permalink] 20 Nov 2017, 17:07
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# Last week Chris earned x dollars per hour for the first 40 hours worke

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