A free program for Android, by Pro Student Guide.
This is a 12th Class Math Solution Book in pdf format for better preparation of your exam. It contains everything you need for your exams including the complete solution of all the Maths problems. This is a book that is very easy to use and comprehend. You can also read the notes of other subjects of 12th Class. It is a very useful and good book for those students who are preparing for their exams.
It is compatible for all android devices, has the sharing option, and the pages are very easy to read. You can also use it for offline reading.