2/5 of the fish in an aquarium are red and 1/4 of the fish are brown. 3/4 of the red fish and 2/5 of the brown fish are male. If the rest of the fish in the aquarium are female, what is the probability that a fish randomly picked from the aquarium is male?
Choose the correct choice from the following options.
A) 1/2  B) 1/4  C) 2/5  D) 3/10  E) 7/20
3/4*2/5 + 2/5*1/4 = 2/5   The answer is 2/5.
<result>C</result>
2/5 of the fish in an aquarium are red and 1/4 of the fish are brown. 3/4 of the red fish and 2/5 of the brown fish are male. If the rest of the fish in the aquarium are female, what is the probability that a fish randomly picked from the aquarium is male?