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A certain company charges $6 per package to ship packages weighing les

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A certain company charges $6 per package to ship packages weighing les [#permalink]

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New post 08 Dec 2015, 02:34
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A certain company charges $6 per package to ship packages weighing less than 2 pounds each. For a package weighing 2 pounds or more, the company charges an initial fee of $6 plus $2 per pound. If the company charged $38 to ship a certain package, which of the following was the weight of the package, in pounds?

(A) 16
(B) 17
(C) 19
(D) 20
(E) 22
[Reveal] Spoiler: OA

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Re: A certain company charges $6 per package to ship packages weighing les [#permalink]

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New post 08 Dec 2015, 02:41
The total cost was 38 from which we subtract $6 fixed fee
That leaves us with 32 which is the amount paid per pound
@$2 per pound, the weight is 16 pounds
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Re: A certain company charges $6 per package to ship packages weighing les [#permalink]

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New post 08 Dec 2015, 03:41
total cost =38
one time cost =6
additional cost =38-6=32
32/2=16 in additional pounds
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Re: A certain company charges $6 per package to ship packages weighing les [#permalink]

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New post 08 Dec 2015, 18:10
Hi All,

This question can be solved by TESTing THE ANSWERS.

We're told that a certain company charges $6 per package to ship packages weighing less than 2 pounds each. However, for a package weighing 2 pounds or more, the company charges an initial fee of $6 plus $2 per pound. We're told that a certain package cost $38 to ship. We're asked for the weight, in pounds, of that package.

Let's TEST Answer B: 17 pounds

According to the pricing 'rules' a 17 pound package would cost $6 + 17($2) = $40. This is TOO EXPENSIVE. Thus, the package must weigh LESS than 17 pounds. There's only one answer that fits...

Final Answer:
[Reveal] Spoiler:
A


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Re: A certain company charges $6 per package to ship packages weighing les [#permalink]

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New post 09 Dec 2015, 17:24
6+2x=38
x=16

(A) 16
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Re: A certain company charges $6 per package to ship packages weighing les [#permalink]

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New post 10 Dec 2015, 03:47
Forget conventional ways of solving math questions. In PS, IVY approach is the easiest and quickest way to find the answer.


A certain company charges $6 per package to ship packages weighing less than 2 pounds each. For a package weighing 2 pounds or more, the company charges an initial fee of $6 plus $2 per pound. If the company charged $38 to ship a certain package, which of the following was the weight of the package, in pounds?

(A) 16
(B) 17
(C) 19
(D) 20
(E) 22


Let the weight of the package be X. Then the cost is 2*X + 6= 38 ---> 2X=32 ---> X=16.

So the answer is (A).
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Re: A certain company charges $6 per package to ship packages weighing les   [#permalink] 10 Dec 2015, 03:47
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