Marking Scheme for IIT JAM Mathematics Paper

The IIT JAM (Joint Admission Test for M.Sc.) Mathematics paper consists of multiple-choice questions (MCQs) and numerical answer type (NAT) questions. The marking scheme for each type of question is as follows:

MCQs (Multiple-Choice Questions)
- Each MCQ question carries one or more correct options.
- For each correct option chosen, the candidate is awarded (+1) mark.
- For each incorrect option chosen, there is negative marking.
- The negative marking for each incorrect option varies depending on the number of correct options for that particular question.
- If a question has only one correct option, then for each incorrect option, (-1/3) mark is deducted.
- If a question has more than one correct option, then for each incorrect option, (-2/3) mark is deducted.
- If a student does not choose any option for a question, then no marks are awarded or deducted.
- There is no partial marking for MCQs, meaning if a student chooses some correct options and leaves out others, no marks will be awarded.

NAT (Numerical Answer Type) Questions
- NAT questions do not have any options to choose from. Instead, candidates have to enter the numerical value as the answer.
- There is no negative marking for NAT questions.
- The answer should be entered using the virtual numeric keypad on the computer screen.
- The answer is evaluated using the exact value entered by the candidate. No approximation is considered.
- If the answer is correct and within the specified range, the candidate is awarded full marks.
- The range of values for which full marks are awarded may vary for each question and is mentioned in the question paper.
- If the answer is incorrect or not within the specified range, no marks are awarded.

It is important for candidates to read the instructions carefully and attempt the questions accordingly. They should also manage their time effectively to ensure that they attempt all the questions within the given time limit. Regular practice and thorough understanding of the concepts covered in the syllabus are crucial for scoring well in the IIT JAM Mathematics paper.