At the market 2.4 pounds of carrots cost $1.68 and 1.8 pounds of broccoli cost $1.53 . How much more does 1 pound of broccoli cost than 1 pound of carrots?

Question

(also can you please explain how you got to the answer?)

Answer 1

First find "unit values" (that is, the cost of 1 pound of carrots and 1 pound of broccoli) and then subtract to find "how much more?" 

 

Note:  the question is not "How much does each cost?" but "How much more ...?"

 

So, let:

    x = cost of 1 pound of carrots

    y = cost of 1 pound of broccoli

  then

   (y-x) = "How much more does 1 pound of broccoli cost than 1 pound of carrots?"

 

The problem states:

    $1.53/(1.8 pounds) - $1.68/(2.4 pounds) = (x-y)  $/pound

        $0.85/pound - $0.70/pound = 15 cents/pound