A binary tree T has 20 leaves. The number of nodes in T having two chi

1.	A binary tree T has 20 leaves. The number of nodes in T having two children is
A.	18
B.	19
C.	17
D.	Any number between 10 and 20
Answer» C. 17

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A binary tree T has 20 leaves. The number of nodes in T having two children is

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