Hello candidate,

I am sorry to inform you but because of the limitation of the number of answering was available on this platform was not possible on my part to provide you with the detailed mathematical solution and diagrammatic viewpoint of explaining the question in details. But if you use the basic formula of 1/v- 1/u= 1/f, where u is the image distance, v is the object distance, and f is the focal length as mentioned in the question will automatically help you to solve the problem.

If you have any other queries feel free to post it here!!