IIT JAM 2027 Exam Pattern and Marking Scheme Explained

This page applies to every JAM 2027 paper. The structure, the question types and the marking rules are the same whether you are appearing for Mathematical Statistics, Mathematics or Economics.

Quick answer. JAM 2027 is a three hour Computer Based Test with 60 questions carrying 100 marks. The paper is divided into three compulsory sections. Section A has 30 Multiple Choice Questions worth 50 marks and is the only section with negative marking. Section B has 10 Multiple Select Questions worth 20 marks with no negative and no partial marking. Section C has 20 Numerical Answer Type questions worth 30 marks with no negative marking. There is no General Aptitude section in JAM.

Question Paper Structure

Section	Type	Questions	Marks
A	MCQ	30	50
B	MSQ	10	20
C	NAT	20	30
Total		60	100

All three sections are compulsory. Questions appear in a random sequence on screen.

Mark Distribution Within Each Section

This level of detail is published in the official brochure and it matters for planning your attempt order.

Section	Question Numbers	Marks Each	Count	Section Total
A	Q1 to Q10	1	10	10
A	Q11 to Q30	2	20	40
B	Q31 to Q40	2	10	20
C	Q41 to Q50	1	10	10
C	Q51 to Q60	2	10	20

Read that table once more. Twenty of the sixty questions carry 1 mark and forty carry 2 marks. The 2 mark questions are worth 80 of the 100 marks. Your attempt strategy should reflect that, not treat all sixty questions as equal.

The Three Question Types

Section A: Multiple Choice Questions

• Four options, exactly one is correct
• Answered using the mouse
• This is the only section with negative marking

Question Value	Correct	Incorrect
1 mark	+1	−1/3
2 marks	+2	−2/3

Section B: Multiple Select Questions

• One or more options may be correct
• Answered using the mouse
• No negative marking
• No partial marking

Every question in Section B carries 2 marks. To earn those marks you must select every correct option and no incorrect option.

Section C: Numerical Answer Type

• No options are shown
• The answer is a real number entered using a virtual numeric keypad on screen
• The computer keyboard is disabled for these questions
• No negative marking

In all three sections, an unattempted question scores zero.

Examination Facilities

The official brochure confirms the following.

Facility	Detail
Virtual calculator	Provided on screen. Candidates may not bring their own calculators.
Scribble pad	Provided for rough work. Write your name and registration number on it before use, and return it at the end.
Keyboard	Disabled. NAT answers are entered using the on screen numeric keypad with the mouse.
Timing	The examination ends automatically after the stipulated time.

How to Attempt Each Type

Section A Strategy

This is where the marks leak away, because negative marking here is real and it compounds.

• Read all four options before selecting. A plausible near answer is frequently placed just before the correct one.
• Use elimination only when you can justify why an option is wrong, not when it merely feels unlikely.
• With two of four options confidently eliminated, a guess becomes mathematically reasonable. With nothing eliminated, leave it.
• Three wrong 2 mark MCQs cost you two full marks. That is an entire question given away.

Section B Strategy

Students handle this section worst, because the absence of negative marking creates false confidence.

• There is no partial credit. Three correct options out of four earns you nothing.
• Evaluate each option independently, as a separate true or false judgement. Do not look for a pattern across the four.
• Being sure about two options and unsure about a third is not a safe attempt. It is a coin toss for the whole 2 marks.
• Since there is no penalty, attempt it if you have a reasonable basis. Just do not burn three minutes on a guess.

Section C Strategy

No negative marking makes Section C the most attemptable, and also the section where careless errors cost the most.

• Check the sign. A negative answer entered as positive scores zero.
• Check decimal places against what the question asked for.
• The keyboard is disabled, so every digit goes in by mouse. Type slowly and read back what appears on screen.
• Write the answer on your scribble pad first, then enter it, then verify the two match.
• If you have a number, enter it. A blank scores the same as a wrong answer here, which is zero.

The Virtual Calculator

An on screen scientific calculator is provided and physical calculators are not permitted.

Two consequences follow. First, it is slower than you expect. Every input is a mouse click. A calculation taking fifteen seconds on a physical calculator can take forty five seconds on the virtual one. Second, it needs practice. Students who meet it for the first time on exam day lose several minutes across the paper simply fumbling.

Attempt at least ten full length mocks on an interface that replicates it.

A Realistic Time Plan

Three hours for 60 questions gives roughly three minutes per question. That average is misleading, because 1 mark and 2 mark questions are not comparable.

Phase	Approximate Time	What You Do
First scan	10 minutes	Go through all sixty questions, marking each as easy, doable or leave
Section C first	40 minutes	No negative marking, so secure these marks early while you are fresh
Section A, 1 mark questions	20 minutes	Q1 to Q10, quick and low risk
Section A, 2 mark questions	55 minutes	The main solving phase
Section B	30 minutes	Careful option by option evaluation
Final review	15 minutes	Verify every Section C entry and revisit marked questions

Many strong candidates open with Section C rather than Section A, precisely because it carries no penalty. Test both orders in your mocks and settle on one before exam day. Do not experiment during the actual paper.

The rule that protects your score: never let one difficult question consume the time three easier questions needed. Four minutes gone and no closer to an answer means mark it and move. You can return. You cannot get the four minutes back.

You Cannot Practise Exam Pattern on Paper

Reading about Sections A, B and C is not the same as handling them on a running clock with a disabled keyboard and a virtual calculator. Practise on an interface that matches the real one.

See the StatChakravyuh Test Series

Common Pattern Mistakes

1. Treating Section B like Section A. Selecting one option out of habit when more than one is correct earns zero.
2. Guessing in Section A to raise the attempt count. A higher attempt count with a lower score is a worse result.
3. Leaving Section C questions blank because the answer looks odd. There is no penalty. If you have a number, enter it.
4. Entering a Section C answer to the wrong number of decimal places.
5. Meeting the virtual calculator for the first time on exam day.
6. Skipping the review pass. Section C entry errors are the most recoverable mistakes in the paper, and only a review pass catches them.

Frequently Asked Questions

Related Pages

• IIT JAM 2027: Complete Guide
• IIT JAM 2027 Registration, Exam Date and Eligibility
• IIT JAM Mathematical Statistics
• IIT JAM Mathematics