How to insert image from same directory but different folder ?

Answer 1

You can simply copy and paste the image from the folder to the required one.
Now, you have your image in the same folder.
So, you can simply write :
Say, my image's name is cake(in jpg format)
Hence,
<img src="cake.jpg" alt="CAKE">
You will see the image!
I hope you understood it!
If not, do not hesitate to ask.
Best regards,
Poorva

Answer 2

I'm familiar with that way, I'm saying if it is in different folder