选择题
2010 AMC 8 Problem 15: Gumdrops Recolored
A jar contains 5 different colors of gumdrops. 30% are blue, 20% are brown, 15% are red, 10% are yellow, and the other 30 gumdrops are green. If half of the blue gumdrops are replaced with brown gumdrops, how many gumdrops will be brown?
A.
35
B.
36
C.
42
D.
48
E.
64