- Lessons
- Free
- Analytical Reasoning
Blood Relation Problems Level - 4
The Blood Relation Level 4 Assessment is an elite 41-question "Grandmaster" module that represents the ultimate intersection of logical deduction and mathematical constraints. This level is designed for the most difficult shifts of competitive exams like CAT (DILR), XAT, and top-tier Mathematical Olympiads, where blood relations are merely the foundation for complex Game Theory, Probability, and Multi-State Truth-Teller/Liar puzzles.
Choose Normal practice or a Simulated test.
Questions, answer key and solutions.
- Questions
- 49
- Duration
- 75 min
- Marks
- 49
- Attempts
- 100
- Access
- Free
Negative marking
Normal practice, or a Simulated test
The same questions, either way. Normal practice teaches; the simulated test tells you where you stand.
Normal
UntimedEvery question on one page, loading as you scroll. Choose an option and see straight away whether it was right.
- No timer. Nothing to start and nothing to submit. Stop whenever you like.
- Answered as you choose. Tap an option and it is marked at once, with the correct answer shown.
- Solutions in place. The explanation, and the video where one has been added, sit under the question.
- Open to guests. Normal practice needs no sign-in.
Simulated
Timed CBTThe computer-based test format: one clock, a question palette, and a score the moment you submit.
- A clock that does not pause. 75 minutes from the moment you begin, and the paper is submitted for you when it reaches zero.
- Question palette. Answered, not answered and marked for review, section by section, as the real interface has it.
- Full screen, proctored. The test takes over the screen; leaving it three times submits the paper.
- Answers hidden until you submit. The key, the explanations and your score all arrive together at the end.
About this test
At Level 4, the traditional family tree is no longer sufficient. Questions are designed to be "information-sparse," requiring candidates to solve for multiple unknown variables (Age, Profession, City, and Relation) simultaneously while navigating conditional "If-Then" statements that change the family structure based on different scenarios.
Syllabus & Core Question Types:
Binary Logic & Blood Relations: Puzzles involving family members where some always tell the truth, some always lie, and some alternate (e.g., "A says B is my father; B says A is my son; one is lying").
Seating with Dynamic Relations: 8–10 people in a circular or square arrangement where their positions are defined by their relations, but their relations are also defined by their positions (e.g., "The person sitting opposite X is X's maternal uncle's only sister").
Generational Probability: Problems requiring the calculation of the minimum or maximum number of males/females in a 4-generation family based on restrictive constraints like "each couple has at least one son and one daughter."
Coded Relations with Operations: Advanced coded sets where symbols represent both a relation and a mathematical operation (e.g., "A @ B means A is the father of B and A's age is twice B's age").
Test structure
How the paper is split, and how long each part runs. A section you have finished cannot be returned to.
| Section | Questions | Time |
|---|---|---|
| Blood Relation Problems level 4 | 49 | 75 min |
Marking & rules
- Total marks
- 49 across 49 questions.
- Negative marking
- A wrong answer costs marks. Leaving a question unanswered costs nothing.
- Attempts
- 100 in total. An attempt is spent the moment you begin one.
What you get when you submit
The analysis is ready the moment you submit the paper.
Score and accuracy
Marks, percentage, right, wrong and skipped, and the time you took.
Section by section
The same figures for each section, so a weak one cannot hide in an average.
The full answer key
Every question with your answer, the right one, the working, and the video where there is one.
Where you stand
Your score against the spread of everyone else who has sat this test.