An old truck uses 16 gallons of diesel fuel in traveling 224 miles. In order for the truck to travel the same distance using 8 gallons of diesel fuel, by how many miles per gallon must the truck’s fuel mileage be increased?  Choose the correct choice from the following answers
A) 16	B) 8	C) 14	D) 12	E) 24
There are two sets 16G1 gallons and 8G2 gallons details given.   16 gallons covering 224 miles   Then 1 G1 is used to cover 14 miles.   Now for 8 G2 covering 224 miles.   then 1 G2 is used to cover 28 miles.   There must   28 - 14= 
<gadget id="calculator">  28 - 14</gadget>
<output>14</output>
14 miles per gallon increment is needed for 8 gallons to improve the mileage to cover 224 miles.   IMO 14 is correct answer.
<result>C</result>
An old truck uses 16 gallons of diesel fuel in traveling 224 miles. In order for the truck to travel the same distance using 8 gallons of diesel fuel, by how many miles per gallon must the truck’s fuel mileage be increased?