In a box there are 28 marbles of which x are green and the rest are white. If the probability of getting a green marble is 2 then the number
In a box there are 28 marbles of which x are green and the rest are white. If the probability of getting a green marble is 2 then the number of white marbles is
A) 20
B) 16
C) 12
D) 8
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