La Salle College – F3 Maths Final Exam Paper 1 A B 2013-14

Numerical Answer (數值答案):

Paper 1 Section A

1. \(\dfrac{1}{36m^{4}n^{2}\)
2. -25 + 5y + 16y² + 4y³
3. (n – m)(mn – 3m – 2)
4. \(R = \dfrac{4S – a}{8S}\)
5. $4000
6. 160
7. a) ΔABE ~ ΔDBC (AAA)
   b) BC = 7.5

Section B

8. a) VQ
   b) ∠ARB
   c) VAB and ABC
9. % error of watch A = 0.00025%
   % error of watch B = 0.000243% < % error of watch A
   Therefore, watch B is more accurate.
10. x < 3/4
11. 46 kg
12. a) y = 1/5   or  y = -3
    b) x = 5  or x = -1/3
13. 0°
14. 10%
15. AC = 29 cm
    OQ = 7.75 cm
16. 17/96
17. –

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