There are 20 red marbles and 10 blue marbles mixed together in a cloth bag. If you reach in and pull out a marble, without looking, what are the odds of selecting a blue marble?
A) 1:2
B) 1:3
C) 1:4
D) 1:5

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The Answer of There are 20 red marbles and 10 blue marbles mixed together in a cloth bag. If you reach in and pull out a marble, without looking, what are the odds of selecting a blue marble?
A) 1:2
B) 1:3
C) 1:4
D) 1:5

There Are 20 Red Marbles and 10 Blue Marbles Mixed