Free worked solutions · O-Level E-Math 2017
All 9 questions from O-Level / IP E-Math 2017 Paper 2, each with a verified step-by-step solution.
Linear inequality
11 marks: 2 + 2 + 2 + 2 + 3 · number & algebra (algebraic manipulation)
Mean from a total
8 marks: 2 + 2 + 2 + 2 · number & algebra (standard form, percentage)
Evaluate an exponential model
9 marks: 1 + 1 + 3 + 1 + 2 + 1 · number & algebra (exponential graph, gradient by tangent)
Distance between two points
9 marks: 2 + 2 + 2 + 3 · number & algebra (coordinate geometry)
Angle between two bearings
10 marks: 3 + 3 + 2 + 2 · geometry & measurement (bearings, sine/cosine rule, trigonometry)
Vector path in a parallelogram
9 marks: 2 + 3 + 2 + 2 · geometry & measurement (vectors, similar & congruent triangles)
Express dimensions algebraically
11 marks: 2 + 3 + 3 + 1 + 2 · number & algebra (forming & solving a quadratic) / geometry & measurement (surface area, volume)
Angle at centre via right-angled trig
11 marks: 2 + 4 + 2 + 3 · geometry & measurement (circle segment, mensuration)
Median & quartiles from a CF curve
12 marks: (a) 1 + 2 + 2 + 2, (b) 1 + 2 + 2 · statistics & probability
Genius Plus Academy · O-Level & IP Mathematics
Our O-Level E-Math tuition trains the same recognise-the-structure method these worked solutions show, taught by a team that has marked these papers for years. It runs within our weekly Secondary Math programme, Sec 1 to 4 and IP.
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