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There are 6 red balls and 6 green balls ...

There are 6 red balls and 6 green balls in a bag. Five balls are drawn out at random and placed in a red dox. The remaining seven balls are put in a green box. If the probability that the number of red balls in a green box plus the number of green ball in the red box is not a prime number, is `p/q` where p and q are relativey prime, then find the value of `(p+q).`

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