Answer: There are atmost 4 picture frames can be made.
Explanation:
Since we have given that
Length of board is given by

Length of board is scratched and cannot be used is given by

Rest of board will be used to make small picture frames is given by

Length of board needed for each picture frame is given by

So, Number of complete picture frames can be made is given by

∴ There are atmost 4 picture frames can be made.