Tanusree Gope Comments: i solved 2 questions by wkb, its easy, thanks sir... without ur document, i think, its impossible to solve by reading only 2-3 pages. ME: Do you find this format useful? Tanusree Gope : yup, very useful, sir... thats what i said in my previous msg..it is good that i can solve question, which is important to crack any competitive exams..