How many leaf nodes

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In a binary tree with exactly 15 internal nodes, 10 of them have 2 children, and the other 5 have 1 child. How many leaf nodes are there in the tree.

Generalize your answer. In a binary tree with x + y internal nodes, where x of them have 2 children, and y of them have 1 child, how many leaf nodes are there?

(Providing detials on how you reached the answer is greatly appreciated)

Reference no: EM131113415

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