The mirror binary tree diagram should have 75 and 25 swapped with each other to be the mirror of original tree.
Hi @Saddam,
You’re right, the diagram should have 75 and 25 swapped with each other to be the mirror of the original tree.
Thank you for pointing out this issue. We’re working on fixing it. It’ll be fixed very soon.
Happy Learning 
Hi @Saddam,
All the diagrams in this lesson have been fixed. You can see the updated lesson by updating the page. Once again, thank you for pointing out this issue.
Happy Learning