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Sarah‟s seafood restaurant gets a delivery of fresh seafood every day, [#permalink]

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01 Feb 2010, 20:01

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A

B

C

D

E

Difficulty:

25% (medium)

Question Stats:

73% (01:53) correct
27% (01:37) wrong based on 137 sessions

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Sarah's seafood restaurant gets a delivery of fresh seafood every day, 7 days per week, and her delivery company charges her d dollars per delivery plus c cents per item delivered. If lst week Sarah's seafood restaurant had an average of x items per day delivered, then which of the following is the total cost, in dollars, of last week's deliveries ?

A. 7cdx/100 B. d + 7cx/100 C. 7d + xc/100 D. 7d + 7xc/100 E. 7cdx

Re: Sarah‟s seafood restaurant gets a delivery of fresh seafood every day, [#permalink]

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02 Feb 2010, 21:16

Okay, thanks gurpreetsingh. I wasn't sure the purpose of c/100. I thought the decimals value was already reflected in the variable c ( as in c= .25 cents)

Re: Sarah‟s seafood restaurant gets a delivery of fresh seafood every day, [#permalink]

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27 Dec 2014, 04:53

Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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While I agree that this question is relatively straight-forward, whenever Test Takers see a drop in scores on Test Day, the reason is almost always SILLY/LITTLE MISTAKES. As such, it's important to be sure that you have the correct answer to a question that you "think" is easy/straight-forward/gettable. This question can be solved by TESTing VALUES.

We're told to calculate the cost of 7 days of deliveries.

On each day, there's a cost for the delivery itself (D DOLLARS) and a cost per item delivered (C CENTS/item). Note the difference in UNITS. During the week, we're told that an average of X items are delivered each DAY.

Let's TEST VALUES: D = 2 C = 3 X = 10

So, per day, the Total Cost = 2 dollars + 3 cents(10 items) = $2.30 per day

For 7 days, that's 7($2.30) = $16.10

Now, we just have to check the answers and find the match IN DOLLARS... Answer A = 7(3)(2)(10)/100 = 420/100 = 4.2 dollars. NOT a match

Answer B = 2 + 7(10(3)/100 = 2 + 210/100 = 4.1 dollars. NOT a match

Answer C = 7(2) + 10(3)/100 = 14.3 dollars. NOT a match

Answer D = 7(2) + 7(10)(3)/100 = 16.1 dollars. This IS a MATCH

Re: Sarah‟s seafood restaurant gets a delivery of fresh seafood every day, [#permalink]

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01 Feb 2016, 04:09

Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
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