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26 Feb 2011, 09:45
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45% (medium)

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63% (01:56) correct 37% (02:17) wrong based on 136 sessions

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A slot machine in a Las Vegas casino has an average profit of $600 for each 8-hour shift for the five days Sunday through Thursday, inclusive. If the average per-shift profit on Friday and Saturday is 25% greater than on the other days of the week and the slot machine is in operation every hour of every day, what is the total weekly profit that the casino makes from the slot machine? a - 4500 b - 9000 c - 13,500 d - 15,500 e - 27,000 [Reveal] Spoiler: OA Intern Joined: 24 Apr 2010 Posts: 1 Re: A slot machine in a Las Vegas casino has an average profit of$600 for [#permalink]

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26 Feb 2011, 09:56
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Correct answer is C - 13500.

Total profit per weekday = $600 X 3 (shifts)=$1800
Total profit per week (apart from Saturday & Sunday) = $1800 X 5 =$9000

Total profit per shift on weekends = $600 X 125/100 =$750

Total profit on weekends = $750 X 3 (shifts) X 2 (Saturday, Sunday) =$4500.

Hence the answer is - $4500 +$9000 = $13,500. (C) Intern Joined: 26 Feb 2011 Posts: 35 Re: A slot machine in a Las Vegas casino has an average profit of$600 for [#permalink]

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26 Feb 2011, 10:25
Thank you very much!
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Re: A slot machine in a Las Vegas casino has an average profit of $600 for [#permalink] ### Show Tags 23 Nov 2016, 07:20 Madelaine88 wrote: A slot machine in a Las Vegas casino has an average profit of$600 for each 8-hour shift for the five days Sunday through Thursday, inclusive. If the average per-shift profit on Friday and Saturday is 25% greater than on the other days of the week and the slot machine is in operation every hour of every day, what is the total weekly profit that the casino makes from the slot machine?
a - 4500
b - 9000
c - 13,500
d - 15,500
e - 27,000

quite an easy one for the 700 level...
profit made during Sun-Thursday = 600 * 3 (3 shifts/24h divided by 8h shift) = 1,800$/day makes a slot machine during Fri-Sat -> machine makes 5/4 * (1,800$) = 2,250$. total what machine does: 1,800*5 + 2,250*2 = 13,500$

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Re: A slot machine in a Las Vegas casino has an average profit of $600 for [#permalink] ### Show Tags 25 Aug 2017, 05:27 Total profit per weekday =$600 X 3 (shifts)= $1800 (8 hours each) Total profit per week (apart from Saturday & Sunday) =$1800 X 5 = $9000 Total profit per shift on weekends =$600 X 125/100 = $750 Total profit on weekends =$750 X 3 X 2 = $4500. Hence the answer is$4500 + $9000 =$13,500. (C)
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A slot machine in a Las Vegas casino has an average profit of $600 for [#permalink] ### Show Tags 26 Aug 2017, 09:15 1 This post received KUDOS Madelaine88 wrote: A slot machine in a Las Vegas casino has an average profit of$600 for each 8-hour shift for the five days Sunday through Thursday, inclusive. If the average per-shift profit on Friday and Saturday is 25% greater than on the other days of the week and the slot machine is in operation every hour of every day, what is the total weekly profit that the casino makes from the slot machine?
a - 4500
b - 9000
c - 13,500
d - 15,500
e - 27,000

The wrinkle in this question: profit is given in shifts of 8 hours, but the question asks for total profit where the machines operate 24 hours a day.

Total weekly profit will be:

1) per-shift profit * 3 (to get 24 hours) * 5 (days) for Sunday to Thursday, plus

2) per-shift profit * 3 * 2(days) for Friday and Saturday

Every solution posted uses #s 1 and 2. Every solution is a condensed version of the explanation below, which I'm posting because the stats seem unusually skewed for this question.

1. Sunday through Thursday: From Sun to Thurs, the average profit for an 8-hour shift is $600. But to calculate total profit of machines working all day, every day, we need total profit for each day of 24 hours: $$\frac{600}{8hrs}$$ = $$\frac{x}{24hrs}$$ --> 8 is multiplied by 3 to get 24. Multiply 600 by 3 to get the numerator x x =$1,800 per day for the five days Sunday through Thursday

Su - Th total profit = $1,800 * 5 =$9,000

2. Friday and Saturday: average
per-shift profit is 25 percent greater than on the other days

1.25 * $600 =$750 per 8-hour shift

$$\frac{750}{8hrs}$$ = $$\frac{x}{24hrs}$$ --> ($750 * 3 to get x) x =$2,250 per day * 2 days =

$4,500 total for Fri and Sat Total weekly profit is$9,000 + $4,500 =$13,500

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Re: A slot machine in a Las Vegas casino has an average profit of $600 for [#permalink] ### Show Tags 29 Aug 2017, 16:19 Madelaine88 wrote: A slot machine in a Las Vegas casino has an average profit of$600 for each 8-hour shift for the five days Sunday through Thursday, inclusive. If the average per-shift profit on Friday and Saturday is 25% greater than on the other days of the week and the slot machine is in operation every hour of every day, what is the total weekly profit that the casino makes from the slot machine?
a - 4500
b - 9000
c - 13,500
d - 15,500
e - 27,000

Since 1 day = 24 hours, each day has three 8-hour shifts. Therefore, the casino makes a total of:

600 x 5 x 3 + 1.25(600) x 2 x 3

600 x 15 + 750 x 6

9000 + 4500 = 13500

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