數學試卷答案 – St. Stephen’s Girls’ College Form 1 Math Mid-Year Exam 2018-19

數學試卷答案 – St. Stephen’s Girls’ College Form 1 Math Mid-Year Exam 2018-19

試卷答案

Section A

1. -3.5, -3.2, 0, +1.5, +2.3
2. 15
3. 21
4. 17
5. \(q-\dfrac{p^{3}}{3}\)
6. $8w
7. 500/x weeks
8. 4x – 6
9. -4
10. 2 cm
11. 20
12. a) 15 + x < 2
    b) 4q² ≥ 100
13. 5
14. 10
15. C
16. B
17. a) ΔABD
    b) ΔBCD
18. 300%
19. 70
20. 55%
21. 15%
22. $2640
23. $600
24. 390

Section B

25. a) -30
    b) 42
    c = 5
26. a) i) 4x – 6
    ii) x + 6
    b) 65
27. a) b = 4
    b) x = -1/2
28. a) \(x+\dfrac{3}{5}(220-x)\) \leqslant 190
    or \(\dfrac{2x}{5}+132\) \leqslant 190
    b) It is impossible
    c) $145WW
29. a) 12°
    b) ΔABC is an obtse angled triangle
30. a) length = 20 cm
    width = 12 cm
    b) i) 288 cm²
    ii) increased by 20%

St. Stephen’s Girls’ College Form 1 Math Mid-Year Exam 2018-19 試題