A bag containing 15 ounces of mixed nuts contains 40% cashews. Liam adds 45 ounces of mixed nuts containing 60% cashews in the bag. What percent of the mixed nuts in the bag is cashews?
A.27
B.33
C.45
D.55
15 oz @ 40% = .40 (15) oz of cashews
45 oz @ 60% = .60 (45) cashews
New total = 15 + 45 = 60 oz
% = { .40(15) + .60(45) } / 60 x 100% = .........