I’m just getting ready. Please paste your suggested answers here when the time comes and let others comment on it. Thank you.
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Suggested answers to GCE O Level 2015 Math (4016) Paper 2 (via crowdanswering)
Ok. Here are some of the answers:
1(a) (3x-4y)(3x+4y)
1b(I) 5y^2/9x (ii) (4x+15)/(x+2)(2x-3)
(c) 5 or -1/2
(d)(I) (x-9/2)^2 – 13/4 (ii) 6.30 , 2.70
to be continued ….
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O-LEVEL 2015 PHYSICS MCQ INTENSIVE DRILL SESSION (500+ MCQs)
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Suggested answers to GCE O Level 2014 Chemistry (5073) Paper 1
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Here are the suggested answers for O Level Chemistry Paper 1, worked out by our O-Level Chemistry Tutor Mr Eric Lee (Mr Lee is also our H2 Chemistry tutor). Detailed explanations will be posted soon. Answers for paper 2 will be posted soon too.
- B
- A
3. A (corrected) - B
- A
- A
- C
- D
- D
- B
- C
- D
- B
- A
- D
- A
17. B - C
- C
- C
- C
- D
- C
- D
- C
- A
- B
- C
- A
- C
- B
- B
- B
- B
- D
- B
- C
- B
- D
- D
Suggested answers to GCE O Level 2014 Math (4016) Paper 2
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O-LEVEL E. MATH TOPICAL CRASH COURSE
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O-LEVEL PHYSICS TOPICAL CRASH COURSE
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1(a) x < 1/2
1(b)(i) W = 126
1(b)(ii) u = +- Sqrt(v^2 – 2W/m)
1(c) 2x / (x – 4y)
1(d) x = 7 or -1
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2(a) 4.12 x 10^10 kWh
2(b) 40.5% (to 3 SF)
2(c) 1439 kWh (to the nearest kWh)
2(d) 26.2% (to 3 SF)
2(e) 5725 GWh (to the nearest GWh)
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3(a) p = 11.4
3(b) cubic graph
3(c) Near exact answers are x = -1.54, 3.84 or 1.69 (examiners accept answers within a small range)
3(d) Exact answer for the gradient is -5.2 (examiners accept answers within a small range).
3(e) (i) straight line with positive gradient intersects the curve at one point.
3(e)(ii) Near exact answer is (4.24, 0.83) (examiners accept answers within a small range)
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4(a) 83 deg
4(b) Use AA property
4(c) Triangle EAB
4(d)(I) 5:3
4(d)(ii) 82.62 cm squared
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5(a)(I) (-6, -7) in vertical form (2×1 matrix)
5(a)(ii) 9.22 units
5(a)(iii) (4, 8.5)
5(b)(I) 4y + 3x = 16
5(b)(ii) (-2, 5.5)
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To be continued …….