GRE MATH PROBLEM OF THE DAY

A health food store prepares a breakfast food that
consists of oats, raisins, and nuts mixed in the ratio
9:2:1, respectively, by weight. If the nuts in the
mixture weigh 9.2 pounds, how many pounds does the
total mixture weigh?
(A) 82.2
(B) 92.2
(C) 101. 2
(D) 110.4
(E) 165.6