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## Kim purchased n items from a catalog for $8 each. Kim purchased n items from a catalog for$8 each. Postage and handling charges consisted of $3 for the first item and$1 for each additional item. Which of the following gives the total dollar amount for Kimâ€™s purchase, including postage and handling, in terms of n ?

(A) 8n + 2
(B) 8n + 4
(C) 9n + 2
(D) 9n + 3
(E) 9n + 4

The OA is C.

I am confused. I thought the correct answer should be A. Why is C?

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Hello Vjesus12, I hope you're well.

First, as Kim purchased "n" items, we have to notice that the total cost for these "n" items is $8n , because each item cost$8.

Now, let's calculate the postage and handling charges.

For the first item $3. For the rest "n-1" items$1. It implies a total of 1*(n-1)=n-1.

So, the total of postage and handling charges is: $3+(n-1) =$ 2+n.

So, the total dollar amount for Kim's purchase is: $8n + 2 + n =$ 9n +2.

So, the correct answer is option C.

I'm available if you'd like any follow up.

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VJesus12 wrote:
Kim purchased n items from a catalog for $8 each. Postage and handling charges consisted of$3 for the first item and $1 for each additional item. Which of the following gives the total dollar amount for Kimâ€™s purchase, including postage and handling, in terms of n ? (A) 8n + 2 (B) 8n + 4 (C) 9n + 2 (D) 9n + 3 (E) 9n + 4 Let n =1, implying that one item is purchased for a price of$8 plus $3 shipping -- a total cost of$11.
Since the question stem asks for the total cost of Kim's purchase, the target value is $11. Now plug n=1 into the answers to see which yields the target value of 11. Only C works: 9n + 2 = (9*1) + 2 = 11. The correct answer is C. _________________ Mitch Hunt Private Tutor for the GMAT and GRE GMATGuruNY@gmail.com If you find one of my posts helpful, please take a moment to click on the "UPVOTE" icon. Available for tutoring in NYC and long-distance. For more information, please email me at GMATGuruNY@gmail.com. Student Review #1 Student Review #2 Student Review #3 Free GMAT Practice Test How can you improve your test score if you don't know your baseline score? Take a free online practice exam. Get started on achieving your dream score today! Sign up now. ### GMAT/MBA Expert GMAT Instructor Joined 12 Sep 2012 Posted: 2636 messages Followed by: 114 members Upvotes: 625 Target GMAT Score: V51 GMAT Score: 780 We've got ONE item that costs$8 + $3 and (n - 1) items that each cost$8 + $1, so our total is$11 + (n - 1)*$9, or$11 + $9n -$9, or

$9n +$2

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