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Answers Complete Answers (Paper 1)

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CHAPTER 1 ! m = 12 (c) when h = 16
m = 144 Q = 6h + 4
Paper 1 1 Q = 6(16) + 4
2
4. (a) V = πr h
1. A 2. D 3. B 4. C 5. C 3 Q = 100
3V
6. B 7. C 8. B 9. C 10. D h = πr 2 P = ! 100
11. A 12. C 13. A 14. D 15. B 2
1
16. B 17. C 18. C 19. A 20. D h fi P = 10
2
21. C 22. A 23. D 24. B 25. B r 2
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26. C 27. D 28. B 29. C 30. A (b) h = 5 when r = 4 = 5
k
31. C 32. D 33. B 34. B 35. C h = r 2 8. (a) q fi p
36. D 37. B 38. A k ! r
5 =
4 2 kp
Paper 2 q =
h = 5 × 16 = 80 ! r
1. (a) q fi 1 h = 80 k(3)
p 3 4 2 9 =
k when r = 2 ! 16
q =
p 3 80 9 × 4 = 3k
h = = 20
k 2 2 36
4 = k =
1 3 5. (a) k = pm 2 3
k = 4 n 3 k = 12
2
4 8(2 ) q = 12p
q = (b) k =
p 3 4 3 ! r
4 k = 32 12(6)
(b) 108 = 64 (b) 8 =
p 3 1 ! r
4 k =
3
p = 2 8! r = 72
108 n 3
1 (c) p = 2m n 2 3 2 ! r = 72
p =
3
CHAPTER 1 2. (a) w fi ! y 3 3 3 6. (a) p = kq n = ! 216 9. (a) m fi k 1 y 2
8
27

12 =
1
! r = 9
2(3 )
p =
r = 9
3

12 × 18 = n
q = 500
r = 81
3
x
n = 6
kx
m =
w =
y
1
k =
k
6
k3
27 = ! y 3 2 = k(12) m = 3x – 1
q
! 4 (b) p = k
6 2 =
k(27) 72 3(5) – 1
27 = x = k
2 6 2 =
k = 2 x = 12 14
y k = 28
2x 3 3 = 28
w = 6 hence, m =
! y y = 3 × 6 y
2(4) 3 (b) m = 28
(b) w = y = 18 3x – 1
! 16 (c) when m = 4
2(64) 7. (a) P fi ! Q 28
w = P = k! Q 4 =
2 y
w = 32 P = k! 6h + 4 28
y =
k! m P = k! (6 × 10) + 4 4
3. (a) L =
n 2 y = 7
4 = k! 64 3x – 1 = 7
4 = k! 64 4 = 8k
5 5 2 k = 4 3x = 8 8
25 × 4 8 x =
k = 3
8 × 5 k = 1 x = 2 2
5 2 3
k =
2 P = ! Q 10. (a) p fi qr 3
5! m 2 p = kqr 3
2n 2 (b) when P = 2 108 = k(2)(3) 3
! Q 108 = 54k
5! 81 2 =
(b) L = 2 108
2(3 ) ! Q = 2 × 2 k = 54
2
5
L = ! Q = 4 = 3
2 3
15 5! m Q = 4 2 p = 2qr
(c) = (b) p = 2qr 3
8 2(4 ) Q = 16
2
3
15 × 32 6h + 4 = 16 p = 2 ( ) (4 ) 3
! m = 6h = 12 4
8 × 5 = 96
h = 2
118
Answers 1202BS Maths F5.indd 118 25/01/2022 11:47 AM