Page 292 - Matematik Tambahan Tingkatan 4 KSSM

4. Jadual di bawah menunjukkan indeks harga dan perubahan indeks harga bagi empat bahan
utama dalam penghasilan pencuci muka.

Indeks harga pada Perubahan indeks
Bahan tahun 2021 berasaskan harga dari tahun
B
tahun 2019 2021 ke tahun 2023
40% A
A 150 Tidak berubah 10%

B 140 Menyusut 10%
C D
C m Tidak berubah 20%
30%
D 115 Meningkat 20%

(a) Cari nilai m jika indeks gubahan penghasilan pencuci muka tersebut pada tahun 2021
berasaskan tahun 2019 ialah 133.
(b) Hitung indeks gubahan bagi penghasilan pencuci muka pada tahun 2023 berasaskan
tahun 2019.
(c) Hitung kos penghasilan pencuci muka pada tahun 2023 jika kos sepadan pada tahun 2019
ialah RM19.50.

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d��u��k�� Tanpa pemberat
m��i��t��n Indeks Gubahan Dengan pemberat
m��i��t��n NOMBOR r��u�
INDEKS
Nombor Indeks
d��u��k�� ��l�� I = ∑ I w i ,
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Q w = pemberat
0 i
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N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
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N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
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N
N
N
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
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D
D
D
D
D
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D
D
D
D
D
D
D
D
D
D
D
N
N
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N
N
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N
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N
N
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N
N
N
N
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N
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N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
D
D
D
D
D
D
D
D
N
N
N
N
D
D
N
N
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
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S
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J
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J
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U
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J
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U
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L
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L
L
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L
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L
U
U
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U
L
L
L
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T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T
TULIS JURNAL ANDA
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
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U
U
U
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U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
L
L
L
L
L
L
L
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L
L
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L
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L
L
L
L
L
L
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L
L
L
L
L
L
L
L
L
S
L
L
L
S
S
S
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S
L
L
L
L
L
L
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L
L
L
S
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S
S
S
S
S
S
S
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S
S
S
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S
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S
S
S
S
S
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S
L
L
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L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
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L
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L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
A
A
A
A
A
A
A
A
A
A
A
A
A
A
N
A
A
A
A
A
A
A
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
A
A
A
A
A
A
A
A
A
A
A
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A
A
A
A
A
A
A
A
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A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
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N
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N
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N
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N
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N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
L
L
L
L
L
L
L
L
L
L
L
A
A
A
A
A
A
L
L
L
A
A
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
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A
A
A
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A
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A
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A
A
A
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A
A
A
A
A
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A
L
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L
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L
A
A
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A
A
A
A
A
A
A
A
A
N
U
U
U
U
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U
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U
U
U
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U
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U
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U
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Berdasarkan pemahaman anda sepanjang pembelajaran, apakah yang anda faham mengenai
nombor indeks? Pada pendapat anda, bagaimanakah cara menentukan tahun asas yang paling
BAB 10 sesuai untuk mencari nombor indeks bagi sesuatu barangan atau perkhidmatan? Bagaimanakah
pula penentuan pemberat? Apakah faktor-faktor yang mempengaruhi relatif kepentingan
sesuatu item?
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