Directions: Numeric Entry - input your answer in the blank below.
There are few balls in a box, 3 are white, 4 are red and 5 are green. The probability of picking a red ball randomly is twice that of the others due to its size. Three balls are randomly picked. What is the probability that all will be white?
Enter the denominator of your answer. i.e. if your answer is 1/150, enter 150 into the answer box.
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