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Trucking

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Joined: 25 Feb 2008
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Trucking [#permalink]  19 Apr 2008, 00:11
Can someone please explain/teach me how can solve this type of question easily and quickly. I am having really a hard time with type of questions
Appreciate very much.

Trucking transportation rates are x dollars per metric ton per kilometer. How much does it cost, in dollars, to transport one dozen cars, which weigh two metric tons each, n kilometers by truck?
(A)
(B)
(C)
(D) 12xn
(E) 24xn
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Joined: 04 May 2006
Posts: 1936
Schools: CBS, Kellogg
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Re: Trucking [#permalink]  19 Apr 2008, 00:47
Capthan wrote:
Can someone please explain/teach me how can solve this type of question easily and quickly. I am having really a hard time with type of questions
Appreciate very much.

Trucking transportation rates are x dollars per metric ton per kilometer. How much does it cost, in dollars, to transport one dozen cars, which weigh two metric tons each, n kilometers by truck?
(A)
(B)
(C)
(D) 12xn
(E) 24xn

Do not worry too much!

1. one dozen = 12 cars
2. 12 cars each (= each of 12 cars) weighs 2 tons. So total = 12*2=24 tons
3. total tons and kilometers = 24*n
4. one ton and one kilometers costs x dollars, so total costs : x*24*n dollars

So E
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Re: Trucking [#permalink]  19 Apr 2008, 05:06
24xn

x dollars per ton, and for one dozen cars @ 2 tons each is 24 tons, and then we have n kilometres.
Re: Trucking   [#permalink] 19 Apr 2008, 05:06
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