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John has x children by his first wife. M...

John has x children by his first wife. Mary has `(x+1)` children by her first husnand. They marry and hasve children of their own. The whole family has 24 children. Assuming tht two children of the same parents do not fight prove that the maximum possible number of fights that can take place is 191.

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The correct Answer is:
F=191
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