JEE Main Pattern Practice — 3D Coordinates
A 27-question practice quiz on the full chapter: octants, distances, triangle and quadrilateral classification, locus equations, section-formula ratios, centroids, plane divisions, spheres and distances from the axes.
These questions are modelled on the JEE Main pattern and difficulty; they are practice questions in the exam style, not reproductions of specific past papers.
How to attempt this like the real exam:
- Set a timer for 60 minutes and attempt all 27 questions in one sitting.
- Score yourself by the JEE Main scheme: +4 for each correct answer, -1 for each wrong answer, 0 for skipped questions. Maximum score: 108.
- First pass: solve everything that yields within a minute. Second pass: the ones needing real computation. Guess only when you can eliminate two options.
- Review every explanation afterwards — including for questions you got right.
| Your Score | Where You Stand |
|---|---|
| 90 – 108 | Excellent — JEE-ready on this chapter |
| 65 – 89 | Strong — patch the specific topics you dropped |
| 40 – 64 | Decent base — rework the JEE Corner and Solved Examples |
| Below 40 | Revisit Sections 1-2 before attempting again |
This chapter is the doorway to Limits and Derivatives (next chapter, a change of gears into calculus) and to the full 3D geometry of Class 12, where direction cosines, lines and planes all build on these coordinates.