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15 Apr 2018, 17:16
00:00

Difficulty:

5% (low)

Question Stats:

91% (01:23) correct 9% (01:52) wrong based on 52 sessions

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[GMAT math practice question]

Alice is paid at a constant rate of $x per hour for the first 40 hours she works and$30 for each hour she works after the first 40 hours. If Alice works 48 hours and earns $920, what is the value of x? A.$15
B. $16 C.$17
D. $18 E.$19

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15 Apr 2018, 17:46
=>

Total pay = (rate for first 40 hours)*40 hours + ($30)*(number of additional hours) $$x * 40 + ( 48 – 40 ) * 30 = 920$$ $$x*40 + 8*30 = 920$$ $$x * 40 + 240 = 920$$ $$x * 40 = 680$$ $$x = \frac{680}{40} = 17$$ Therefore, C is the answer. Answer: C _________________ MathRevolution: Finish GMAT Quant Section with 10 minutes to spare The one-and-only World’s First Variable Approach for DS and IVY Approach for PS with ease, speed and accuracy. "Only$149 for 3 month Online Course"
"Free Resources-30 day online access & Diagnostic Test"
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