A snack mix that is 20% raisins is blended with a second mix that is 30% raisins. The initial blend is 5 pounds of the first mix and 10 pounds of the second. To make the final blend 22% raisins, how many additional pounds of the first mix must be added to the initial blend?
A - 25
B - 30
C - 35
D - 40
E - 50
Answer: C
Source: EMPOWERgmat