What to Do When You Don't Know the Answer in a Board Exam — Strategies for Difficult Questions

In short: Every student encounters 2-3 questions in every board exam paper that they cannot answer immediately. What separates good scorers from great scorers is what they do next. The strategy is not to panic or spend 15 minutes staring at the question. It is to skip it, attempt everything else, return with a fresh perspective, and use partial-answer techniques to earn marks even on questions you do not fully know. Board exams have no negative marking — every word you write has a chance of earning marks.

The Reality: Nobody Knows Everything

Before the exam, you feel like you need to know every single concept perfectly. In the exam hall, you discover that there are always 2-3 questions that stump you. This is normal:

• Even toppers encounter unfamiliar questions. The difference is how they respond
• The paper is designed to have a difficulty gradient. Some questions are meant to be challenging
• Marks are not binary — a question is not either "full marks or zero." Partial marks exist for virtually every question type

Accepting this reality before the exam reduces panic when you encounter a tough question.

The Skip-and-Return Strategy

This is the most important exam technique you can learn:

Step 1: Attempt (2-minute rule)

Read the question. If you can start answering immediately, do so. If after 2 minutes you have not made meaningful progress, move to Step 2.

Step 2: Skip

Mark the question with a circle or star on the question paper. Do NOT write anything in the answer sheet yet for this question. Move to the next question.

Step 3: Complete the Rest

Finish all other questions you can answer confidently. This does two things:

• It secures marks you can definitely earn
• It gives your subconscious time to process the skipped question

Step 4: Return

After completing the rest of the paper, return to skipped questions. Often, you will find:

• The answer "comes to you" because your brain was processing it in the background
• Another question in the paper gave you a hint or triggered a memory
• With less time pressure (you have already attempted everything else), you think more clearly

Step 5: Partial Answer (always)

Even if you still cannot fully answer the question after returning, write something. See the partial answer techniques below.

Partial Answer Techniques by Subject

Mathematics

In Maths, you almost always earn partial marks for showing work.

When you cannot solve a problem:

1. Write the formula. If the question asks about the area of a sector and you cannot complete the calculation, write: "Area of sector = (θ/360) × πr²." This alone can earn 1 mark
2. Substitute the given values into the formula. Even if you cannot simplify: "= (60/360) × (22/7) × 7²." This earns another mark
3. Show whatever steps you can complete. If you get stuck at simplification, write up to where you can go. The marking scheme awards marks for each correct step
4. Draw the diagram. For Geometry and Trigonometry, a correct diagram with labelling earns 1-2 marks even without the full solution
5. State the conclusion. If you can figure out what the answer should roughly be (e.g., a positive number, an angle less than 90°), write your best estimate as the final answer

Example: A 5-mark question on heights and distances that you cannot solve:

• Draw the figure with the tower, angle, and distance labelled (1 mark)
• Write tan θ = opposite/adjacent (0.5-1 mark)
• Substitute the values (0.5-1 mark)
• Even an incomplete solution could earn 2-3 out of 5 marks

The CBSE marking scheme confirms that step-wise marks are awarded in Maths regardless of whether the final answer is correct.

Science

When you cannot answer a theory question:

1. Write the definition of the key term in the question. If the question asks "Explain the process of transpiration," start with: "Transpiration is the loss of water from the aerial parts of the plant, primarily through stomata"
2. Draw a relevant diagram. A labelled diagram of stomata showing guard cells and water vapour arrows can earn 1-2 marks on its own
3. Write related facts you remember about the topic, even if they do not directly answer the question. Examiners look for relevant knowledge
4. Mention examples. "Examples of transpiration include water droplets on a polythene bag covering a plant in a Biology experiment"

When you cannot solve a numerical:

1. Write the formula
2. Write "Given:" with the values from the question
3. Write "To find:" with the variable asked
4. Substitute values into the formula
5. If you cannot solve, write the setup and move on. You will likely earn 1-2 marks

For chemical equations you do not remember:

1. Write the reactants and products you remember (even if the equation is unbalanced)
2. State the type of reaction
3. Mention the conditions (heat, sunlight, catalyst)
4. A partially correct equation with conditions earns more than a blank space

Social Science

When you cannot remember a specific answer:

1. Write general context. If the question asks about the Jallianwala Bagh massacre and you cannot remember details, write about the broader context: "During the Indian independence movement, the British government imposed repressive laws. In April 1919, an incident occurred in Amritsar, Punjab that intensified the nationalist movement..."
2. Use points format. Even 2-3 relevant points for a 5-mark question earn marks
3. Mention related names and dates that you remember from the chapter
4. For map questions: Mark your best approximation. A mark that is slightly off-location still earns partial credit

For source-based questions:

The answer is almost always within the source passage. Re-read the passage carefully. The question asks you to extract information from the text, not recall it from memory.

English

When you cannot answer a literature question:

1. Paraphrase what you remember about the chapter or poem, even if you cannot quote directly
2. Mention the theme of the work — every literary question connects to a theme
3. Name the author and provide context
4. Use phrases from the question — the question itself often contains clues about the expected answer

When you cannot write the assigned format (letter, article, notice):

1. Get the format right even if the content is weak. Format marks (1-2 marks) are separate from content marks
2. Write in the correct structure: heading, date, body, signature
3. Fill the body with whatever relevant content you can think of

The "Something Is Better Than Nothing" Rule

This rule applies universally across all subjects and all boards:

There is no negative marking in board exams. Writing something wrong does not subtract from your total. But writing something partially correct adds to it.

Subject-Wise Tactics for Questions You Half-Know

When You Know the Topic But Not the Specific Detail

This is the most common situation. You know the chapter, you recognize the concept, but the specific detail asked is fuzzy.

Tactic: Write what you know about the broader topic. The marking scheme often awards marks for relevant knowledge even if the specific detail is missing. Then attempt the specific detail based on your best understanding.

When You Recognize the Question Type But Forgot the Method

Tactic: Write the general approach. "To solve this, we need to find the discriminant of the quadratic equation and then determine the nature of roots." Even stating the method without executing it shows understanding.

When the Question Uses Unfamiliar Phrasing

Sometimes you know the answer, but the question is worded differently from what you expected.

Tactic: Rephrase the question in your own words. Underline the key terms. Ask yourself: "What topic is this from?" Once you identify the chapter, the answer often becomes clear.

When the Case-Based Question Seems Complicated

Case-based questions look intimidating because of the long passage. But the answers are within the passage.

Tactic: Read the sub-questions first, then read the passage looking for specific answers. The sub-questions tell you exactly what to look for in the passage.

Managing Panic in the Exam Hall

When you encounter a question you cannot answer, your body reacts: heart rate increases, palms sweat, thoughts scatter. This is the fight-or-flight response, and it actively hinders your thinking.

Immediate tactics:

1. Deep breath. Three slow breaths. This is not a motivational trick — it literally reduces cortisol and restores prefrontal cortex function
2. Remind yourself of the plan. "I will skip this, finish the rest, and come back." Having a plan reduces anxiety
3. Look at what you have already done. Seeing answered questions reminds you that you know the material
4. Start the next question. Action reduces anxiety. Sitting and staring at a tough question increases it

The 80/20 Rule for Board Exams

80% of your marks come from 80% of the paper that you find manageable. The remaining 20% is where tough questions live. If you:

• Score fully on the 80% you know: That is 64 marks out of 80
• Score partially on the 20% you find tough: That is 6-10 more marks
• Total: 70-74 marks = 87-92%

The math shows that you do not need to answer every question perfectly to score 90%. You need to answer most questions well and salvage partial marks from the rest.

Frequently Asked Questions

Is it okay to leave a question blank in a board exam?

You should avoid leaving questions blank. There is no negative marking, so writing anything gives you a chance at marks. Even a partially correct answer can earn 1-3 marks. A blank answer guarantees zero.

How long should I spend on a question I cannot answer before skipping?

Two to three minutes maximum. If you have not made meaningful progress in 2-3 minutes, mark the question and move on. Return to it after completing the rest of the paper.

What if I skip too many questions and feel demotivated?

Skipping 2-3 questions is normal. Skipping 5+ might indicate a preparation gap. Focus on attempting the questions you can answer first — this builds confidence and momentum. When you return to skipped questions, you will often find them more approachable.

Do examiners give marks for wrong answers?

Not for wrong answers, but for correct partial work. If your final answer in Maths is wrong but the first three steps are correct, those steps earn marks. If your Science answer mentions a correct formula but applies it incorrectly, the formula still earns marks. The marking scheme is designed to reward what you know.

Should I write in the answer booklet that I found the question difficult?

No. Do not write comments like "I did not understand this question" or "This was very hard." Just write your best attempt at an answer. Examiners can only give marks for content, not for commentary.

What is the best way to practice handling difficult questions?

Solve unfamiliar questions from different books or question banks. When you get stuck, practice the partial answer techniques described above. Over time, you build confidence in your ability to earn marks even on tough questions.

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