Page 9 - PRAKTIS HEBAT MATHS TG 2

Prakt is PT 3 Pola dan Jujukan C
1
Patterns and Sequences
1. (a) (i) Menolak 3 dari nombor sebelumnya.
Subtract 3 from the previous number.
A (ii) Bahagi nombor sebelumnya dengan 2.
1. C 2. C 3. D 4. D 5. C Divide the previous number by 2.
6. B 7. D 8. C 9. A 10. A (iii) Darab nombor sebelumnya dengan 4.
Multiply the previous number with 4.
B (b) (i) p = 38, q = 77 (ii) 11
(c) 96
1. 4, 8, 12, 16, … • • 2n + 2; n = 1, 2, 3, … 2. (a) (i)
1, 8, 27, 64, … • • 4n – 1; n = 1, 2, 3, …
3, 7, 11, 15, … • • 4n; n = 1, 2, 3, …
4, 6, 8, 10, … • • n ; n = 1, 2, 3, …
3
2.
16 8 9 16 (ii) Menambah 4 batang pensel kepada bentuk
sebelumnya.
4 25 Add 4 pencils to the previous shape.
(iii) 33 batang / pencils
32 (b) (i) 11:45 a.m. (ii) 1:15 p.m.
64 2 1 36 3. (a) (i) 11
3. (a) (i) Jujukan / A sequence (ii) 6th: (7, 29)
(ii) Bukan jujukan / Not a sequence 7th: (8, 37)
(b) (b) (i) P = 11, Q = 20
1 (ii) 2 + 3n; n = 1, 2, 3, …
1 1 4. (a) (i) Bukan jujukan / Not a sequence
(ii) Jujukan / Sequence
1 2 1 (iii) Jujukan / Sequence
1 3 3 1 (iv) Bukan jujukan / Not a sequence
(b) (i) 6, 11, 16, …
1 4 6 4 1 1 + 5n; n = 1, 2, 3, …
1 5 10 10 5 1 (ii) Ya, kedudukan ke-29.
Yes, 29th position
4. (a) (i) 5. (a) x = 15, y = 32
(b) (i) 4n – 3, n = 1, 2, 3, …
(ii) (ii) 42 – 4n, n = 1, 2, 3, …
(b) (i) 1, 8, 13 (c) (i) Masa (minit) Isi padu air (ml)
(ii) 14, 23 Time (minutes) Volume of water (ml)
5.
32 1 50
2 100
16 16 3 150
4 200
8 8 8 8 5 250
6 300
16
(ii) 9 minit / minutes
KBAT
4 12 12 4 5, 14, 23, 32, 41, 50

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