If the number of red marbles is three times the number of green marbles in a bowl of marbles with only two colors of marbles, what is the ratio of the green marbles to all the marbles?
A. \(1{:}3\)
B. \(1{:}4\)
C. \(3{:}4\)
D. \(3{:}1\)
E. \(4{:}1\)
The OA is B
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If the number of red marbles is three times the number of green marbles in a bowl of marbles with only two colors of
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