NEB NotesNepal
Unit 1 • Class 10Compulsory Mathematics (Mat.101)

Sets

समूह

Cardinality formulas of two and three overlapping sets, Venn diagram representations, solving real-world survey problems.

Lesson Summary & Key Concepts

Master the cardinality of two and three overlapping sets, Venn diagram representations, symmetric differences, and structured step-by-step solutions for SEE 4-mark compulsory examination survey problems.

Textbook Exercises & Solutions

Showing 2 of 2 Solved Questions
Question 1• 5 Marks
Question 2• 4 Marks

High-Yield Exam Focus Questions (1)

CDC Spec Grid Verified

High-probability exam questions curated specifically for Sets.

NEB PriorityTested in SEE 2076, 2078, 2079, 20804 Marks

Exam Rationale: Directly maps to CDC SEE Specification Grid: 4-mark compulsory question on comparing annual vs semi-annual compounding options.

Quick Revision Takeaways

Common Exam Pitfalls to Avoid

⚠️ Common Error: Confusing n(A) with n_o(A).

✓ Correct Approach: n(A) includes elements shared with B and C; n_o(A) subtracts all intersections.

Why: Failing to subtract intersections leads to double-counting and an incorrect universal total.

Content Provenance & Verification
Editorial Verified & Published
Original Author / ContributorNEB Notes Nepal Academic Panel
Verified ByS. K. Adhikari (Senior Mathematics Faculty)
Curriculum Versionv1.0 (CDC 2078/2080 Grid)
Last Verified Date2026-10-23
Legitimate Official Curriculum References
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