0 votes 0 votes Rohan Mundhey asked Nov 5, 2016 Rohan Mundhey 226 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
Best answer 2 votes 2 votes use simple formulae here : L=I(n-1)+1 where L =number of leaf nodes I = number of internal nodes so 81=20(n-1)+1 or, n-1=4 or n=5 koushik.sinha answered Nov 5, 2016 selected Nov 5, 2016 by Rohan Mundhey koushik.sinha comment Share Follow See all 0 reply Please log in or register to add a comment.