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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