0 votes 0 votes closed as a duplicate of: GATE IT 2006 | Question: 9 IN a binary tree, the number of internal nodes of degree one is 5 and the number of internal nodes of degree 2 is 10. The number of leaf nodes in the binary tree is A) 15 B) 11 C) 12 D) 10 DS binary-tree + – Sankaranarayanan P.N asked Oct 27, 2016 closed Oct 27, 2016 by Kapil Sankaranarayanan P.N 299 views comment Share Follow See all 0 reply Please log in or register to add a comment.