Three non negative numbers A, B and C are such that the mean is X and the median is 7.

If X is 12 more than the smallest number and 17 less than the biggest number.

Find the value of A + B + C.

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Three non negative numbers A, B and C are such that the mean is X and the median is 7.

If X is 12 more than the smallest number and 17 less than the biggest number.

Find the value of A + B + C.

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