O/L past papers › 2016
අ.පො.ස. (සා/පෙළ) ගණිතය 2016 ප්රශ්න පත්රය සහ පිළිතුරු
The G.C.E. O/L Mathematics 2016 paper (held December 2016): all 42 questions from Paper I and Paper II, with what each question tests. Try any question free in Gedara Sir to check your answer and see step-by-step working in English and Sinhala.
Import duty as a percentage of an item's value
Answer: Rs 48
💡 What it's asking: Duty is just a percentage of the item's value.
✅ 10% of 800 is 80, and 6% should be a bit more than half of that: 48 fits.
තීරු බද්ද යනු භාණ්ඩයේ වටිනාකමෙන් ප්රතිශතයක් පමණි.
Shade the intersection of two sets
Answer: Shade the common region of A and B
💡 What it's asking: The intersection is what the two sets share.
✅ Any point you shaded should be inside A and also inside B.
ඡේදනය යනු කුලක දෙකට පොදු කොටසයි.
Uniform speed from distance and time
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🔒 Answer & steps: try it free in Gedara Sir→Solve a quadratic given in factorised form
🔒 Answer & steps: try it free in Gedara Sir→Positive integers satisfying a linear inequality
🔒 Answer & steps: try it free in Gedara Sir→Add two algebraic fractions
🔒 Answer & steps: try it free in Gedara Sir→LCM of two algebraic terms
🔒 Answer & steps: try it free in Gedara Sir→Time to harvest with more machines
🔒 Answer & steps: try it free in Gedara Sir→Probability of drawing an odd-numbered card
🔒 Answer & steps: try it free in Gedara Sir→First approximation of a square root from a table
🔒 Answer & steps: try it free in Gedara Sir→Corresponding angles of congruent triangles
🔒 Answer & steps: try it free in Gedara Sir→Curved surface area of a cylinder
🔒 Answer & steps: try it free in Gedara Sir→Cyclic quadrilateral exterior angle with an isosceles triangle
🔒 Answer & steps: try it free in Gedara Sir→Adjacent side from a cosine value
🔒 Answer & steps: try it free in Gedara Sir→Gradient and intercept of a line from its graph
🔒 Answer & steps: try it free in Gedara Sir→True or false statements about parallelograms
🔒 Answer & steps: try it free in Gedara Sir→Opposite angle of a cyclic quadrilateral
🔒 Answer & steps: try it free in Gedara Sir→Chord length from radius and distance to centre
🔒 Answer & steps: try it free in Gedara Sir→Multiply two 2 x 2 matrices
🔒 Answer & steps: try it free in Gedara Sir→Angle using the midpoint theorem
🔒 Answer & steps: try it free in Gedara Sir→Angle in a semicircle and angles on the same arc
🔒 Answer & steps: try it free in Gedara Sir→Volume of a right triangular prism
🔒 Answer & steps: try it free in Gedara Sir→Median and first quartile from partial ordered data
🔒 Answer & steps: try it free in Gedara Sir→Sketch locus to find a point on a side equidistant from two vertices
🔒 Answer & steps: try it free in Gedara Sir→Fractions of a donation spent on items; find the total
🔒 Answer & steps: try it free in Gedara Sir→Pie chart angles and numbers of farmers; redraw after change
🔒 Answer & steps: try it free in Gedara Sir→Shares, dividend, capital gain, then compound interest
🔒 Answer & steps: try it free in Gedara Sir→Grid sample space with replacement and a tree diagram
🔒 Answer & steps: try it free in Gedara Sir→Semicircular stage and rectangle: arc, areas, bulb spacing
🔒 Answer & steps: try it free in Gedara Sir→Graph of a quadratic; decreasing range, turning point, root
🔒 Answer & steps: try it free in Gedara Sir→Mean examination time and number of doctors needed
🔒 Answer & steps: try it free in Gedara Sir→Monthly instalment with reducing-balance interest
🔒 Answer & steps: try it free in Gedara Sir→Trigonometric tables and bearings on a city plan
🔒 Answer & steps: try it free in Gedara Sir→Simultaneous equations for students and teachers; an inequality
🔒 Answer & steps: try it free in Gedara Sir→Quadratic from areas of a cut sheet; surd roots
🔒 Answer & steps: try it free in Gedara Sir→Arithmetic progression odd terms sum; geometric first and fifth terms
🔒 Answer & steps: try it free in Gedara Sir→Construct triangle, incircle and a parallel tangent
🔒 Answer & steps: try it free in Gedara Sir→Angle in terms of x and prove a cyclic quadrilateral
🔒 Answer & steps: try it free in Gedara Sir→Midpoints: congruence, parallelogram equal in area to triangle, right angle
🔒 Answer & steps: try it free in Gedara Sir→Sphere melted into discs: derive radius and evaluate by logs
🔒 Answer & steps: try it free in Gedara Sir→Venn diagram of cricket viewers with a males subset
🔒 Answer & steps: try it free in Gedara Sir→