The maximum number of nodes on level I of a binary tree is which of the following? (Root is Level 1)
Option 1 : 2^(l-1)
Option 2 : 3^l-1
Option 3 : 2^l
Option 4 : 2^l – 1
Answer: Option 1
Option 1 : 2^(l-1)
Option 2 : 3^l-1
Option 3 : 2^l
Option 4 : 2^l – 1
Answer: Option 1