To mail a package, the rate is 20 cents for the first pound and 5 cents for each additional pound. Two packages weighing 3 pounds and 5 pounds, respectively can be mailed seperately or combined as one package. Which method is cheaper and how much money is saved?
Choices
A) Combined, with a saving of 5 cents  B) Separately, with a saving of 5 cents  C) Combined, with a saving of 15 cents  D) Separately, with a saving of 10 cents  E) Combined, with a saving of 10 cents
3 pounds = 1*20+2*5= 
<gadget id="calculator">1*20+2*5</gadget>
<output>30</output>
30   5 pounds= 1*20+4*5= 
<gadget id="calculator">1*20+4*5</gadget>
<output>40</output>
40   total= 70   8 pound = 1*20+7*5= 
<gadget id="calculator">1*20+7*5</gadget>
<output>55</output>
55   dif. 15   Answer : Combined, with a saving of 15 cents
<result>C</result>
To mail a package, the rate is 20 cents for the first pound and 5 cents for each additional pound. Two packages weighing 3 pounds and 5 pounds, respectively can be mailed seperately or combined as one package. Which method is cheaper and how much money is saved?