Summary

• Description:

  The MS Word document comprises LENANA SCHOOL NAIROBI INTERNAL EXAMS Mathematics Paper 1 2026 Mock Exam with Answers (Marking Scheme). The PDF version is also available upon your request. The marking scheme is in a different document.

  It was a KCSE Mathematics Paper 1 examination.

  This paper tests fundamental mathematical concepts, computational methods, algebraic manipulation, mensuration, coordinate geometry, and basic statistics. It requires candidates to display structured working across foundational secondary school topics.

  • Total Marks: 100
  • Number of Questions: 24 (Questions 1-24)
  • Structure: Section I (50 marks, compulsory questions 1-16) and Section II (50 marks, answer any five questions from 17-24).

  It covers the following topics:

  • Section I:
    • Fraction arithmetic, recurring decimals, and prime factorization (GCD and LCM applications)
    • Logarithmic computations and indices
    • Commercial arithmetic: Discounts, marked prices, profit margins, and sales commission schemes
    • Mensuration: Perimeter calculations of composite sectors and plane figures
    • Geometry of regular polygons: Interior and exterior angle relationships
    • Algebraic fractions, factoring, and linear inequalities in two variables
    • Ratio, proportion, and solid geometry nets of prisms
  • Section II:
    • Grouped data statistics: Frequency distributions, mean wages, median classes, and histogram plotting
    • Mensuration of solids: Volume of frustums mounted on hemispheres and recast metal cubes
    • Coordinate geometry: Equations of straight lines, perpendicularity, parallelism, and axis intercepts
    • Graphical algebra: Plotting quadratic curves and solving simultaneous quadratic/linear roots graphically
    • Transformations: Reflections, rotations, coordinates of images, and congruency
    • Circle geometry: Tangent properties, secants, and chord angle calculations
    • Relative speed: Travel schedules, meeting points, and commercial grain mixture proportions
• File Size:

  388.26 KB
• Length:

  15 pages
• Category:

  Mock Past Papers
• Level:

  Form 4
• Subject:

  Mathematics
• Posted By:

  Caleb_Peter

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