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I can place 8 large boxes or 10 small boxes into a carton, I sent a total of 96 boxes.

How many cartons were shipped if I sent more large boxes than small boxes?

 

 Feb 20, 2016
 #1
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I kind of used trial and error but my reasoning is as follows.

 

7 x 8 = 56 boxes. (LARGE BOXES) 7 cartons

4 x 10 = 40 boxes. (SMALL BOXES) 4 cartons

 

96 total boxes and 11 cartons

If anyone has a technical method they can contribute. 
 

 Feb 20, 2016
 #2
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Let y be the number of large boxes and x be the number of small ones.

 

The possibilities for this problem occur in the intersection  of the inrequality  y > x with the equation of the line 10x + 8y = 96. as shown in this graph : https://www.desmos.com/calculator/o77ftjozeh

 

The only integer solutions occur at (0,12) and at (4, 7)

 

So.....if we require that we send at least one box of both types, the guest's answer of 4 small and 7 large cartons  is correct.

 

However, if we don't have this requirement......it is possible that we could just ship 12 cartons filled with large boxes only.....

 

 

cool cool cool

 Feb 20, 2016

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