ECZ 2011 O-Level Paper 1 — Mathematics

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  1. Index Notation: Evaluate 64^(2/3).
  2. Sets: The diagram shows three sets A, B and C in the universal set E. Which …
  3. Algebra: Given that x = -4 and y = -1/2, find the value of xy - x^2.
  4. Similarity and Congruency: The ratio of the surface areas of two similar bottles is 4 : 9. What i…
  5. Sequences and Series: Write the next number in the sequence 2, -8, 32, -128, ...
  6. Sequences and Series: Write the nth term of the sequence 5, 7, 9, 11, ...
  7. Relations and Functions: A function f is defined as f(x) = 3/(5x + 1), x is not -1/5. Find f(1)…
  8. Relations and Functions: A function f is defined as f(x) = 3/(5x + 1). Find x if f(x) = 6.
  9. Trigonometry: The figure shows triangle ABC in which AC = 5 cm and angle A is a righ…
  10. Quadratic Equations: Solve the equation (y + 7)^2 = 9.
  11. Vectors In Two Dimensions: The position vectors of A and B are matrix(0; 1) and matrix(3; 5) resp…
  12. Coordinate Geometry: Find the gradient of the line x + 2y = 4.
  13. Sets: A set has 6 proper subsets. How many elements does it have?
  14. Bearings: In the diagram, C is due south of A, AB = BC and the bearing of B from…
  15. Earth Geometry: An aeroplane flew from point A(60 S, 30 W) to point B(60 S, 60 E). Tak…
  16. Circle Theorems: In the diagram, ABC is a straight line and BS is parallel to UT. Angle…
  17. Circle Theorems: Using the same diagram, find angle BUT.
  18. Circle Theorems: Using the same diagram, find angle SBC.
  19. Geometrical Transformations: A transformation is represented by the matrix matrix(2, 0; -3, 1). A p…
  20. Algebra: Factorise completely x^2y + 2x^2 - 9y - 18.
  21. Circle Theorems: In the diagram, ABCDEF is a regular hexagon and HEFG is part of a regu…
  22. Matrices: Express as a single matrix matrix(4; -3) matrix(2, -1).
  23. Variation: Given that x varies as y and inversely as z^2, and that x = 12 when y …
  24. Variation: x varies directly as y and inversely as z^2, with constant k = 16 (so …
  25. Variation: x varies directly as y and inversely as z^2, with constant k = 16 (so …
  26. Probability: Six pupils obtained the following marks in a Mathematics Contest: 23, …
  27. Symmetry: What is the angle of rotational symmetry of a regular pentagon?
  28. Trigonometry: A vegetable garden is an irregular pentagon ABCDE with AB = BC = CD = …
  29. Mensuration: Using the same garden, calculate the perimeter of the garden.
  30. Linear Programming: In the diagram, R is the unshaded region. Which three inequalities des…
  31. Linear Programming: Find the maximum value of 2x + y within the region R.
  32. Travel Graphs: The speed-time graph shows a lorry which starts from rest and increase…
  33. Travel Graphs: Given that the acceleration of the lorry between 10 and 16 seconds is …
  34. Travel Graphs: Calculate the total distance covered by the lorry.
  35. Similarity and Congruency: A map is drawn to a scale of 1 : 200 000. The actual area of a town is…

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