Sara bought both German chocolate and Swiss chocolate for some cakes she was baking. The Swiss chocolate cost $3.5 per pound, and German chocolate cost $2.8 per pound. if the total the she spent on chocolate was $28 and both types of chocolate were purchased in whole number of pounds, how many total pounds of chocolate she purchased?  Choose the correct choice from the following options:
A) 9	B) 8	C) 10	D) 12	E) 15
If there were all the expensive ones,3.5....   There would be 28/3.5 or 8 of them but since 2.8$ ones are also there, answer has to be &gt;8..   If all were 2.8$ ones, there will be 28/2.8 or 10...   So ONLY 9 is left   9nswer 9..
<result>A</result>
Sara bought both German chocolate and Swiss chocolate for some cakes she was baking. The Swiss chocolate cost $3.5 per pound, and German chocolate cost $2.8 per pound. if the total the she spent on chocolate was $28 and both types of chocolate were purchased in whole number of pounds, how many total pounds of chocolate she purchased?