2/5 of the fish in an aquarium are red and 1/4 of the fish are brown. 1/2 of the red fish and 1/5 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? Select the correct option:
A) 3/20	B) 7/30	C) 5/16	D) 1/4	E) 2/5
1/2*2/5 + 1/5*1/4 = 1/4   The answer is 1/4.
<result>D</result>
2/5 of the fish in an aquarium are red and 1/4 of the fish are brown. 1/2 of the red fish and 1/5 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?