Page 32 - Steady Mate Tg1 - Book B

Matematik Tingkatan 1 Bab 4 Nisbah, Kadar dan Kadaran

Perkaitan antara Nisbah, Kadar dan Kadaran dengan Peratusan,
4.5 Pecahan dan Perpuluhan
Relationship between Ratios, Rates and Proportions, with Percentages, Fractions
and Decimals BUKU TEKS ms. 93 – 99

L Tukar setiap peratusan kepada nisbah a : b dengan keadaan b = 100. TP 2 ARAS R
Convert each percentage into a ratio a : b where b = 100.

Contoh 1. 51% = 51 2. 72% = 72 3. 89% = 89
100 100 100
30
30% = = 51 : 100 = 72 : 100 = 89 : 100
100
= 30 : 100

M Tukar setiap nisbah kepada peratusan. TP 2 ARAS R
Convert each ratio into a percentage.
Contoh 1. 1 : 5 = 1 2. 7 : 20 = 7 3. 8 : 25 = 8

5 20 25
1
1 : 4 = 1 × 20 7 × 5 8 × 4
4 = 5 × 20 = 20 × 5 = 25 × 4
1 × 25
= 20 35 32
4 × 25 = = =
25 100 100 100
=
100 = 20% = 35% = 32%
= 25%

N Selesaikan setiap yang berikut. TP 4 ARAS S
Solve each of the following.

Contoh 1. Nisbah bilangan bola sepak kepada bilangan bola tenis
di dalam sebuah bilik sukan ialah 3 : 17. Cari peratusan
Nisbah bilangan epal kepada bilangan oren di dalam sebuah bola tenis di dalam bilik sukan itu.
peti sejuk ialah 2 : 3. Cari peratusan epal di dalam peti The ratio of the number of footballs to the number of tennis balls
sejuk itu. in a sports equipment storeroom is 3 : 17. Find the percentage
The ratio of the number of apples to the number of oranges in of the tennis balls in the sports equipment storeroom.
a refrigerator is 2 : 3. Find the percentage of the apples in the
bola sepak : bola tenis
refrigerator.
footballs : tennis balls
epal : oren = 3 : 17
apples : oranges
= 2 : 3
Nisbah bilangan bola tenis kepada jumlah bola
Nisbah bilangan epal kepada jumlah buah-buahan Ratio of tennis balls to total balls
Ratio of apples to total fruits = 17 : 3 + 17
= 2 : 2 + 3 = 17 : 20
= 2 : 5
2 × 20 17 × 5
Peratusan epal = Peratusan bola tenis =
Percentage of the apples 5 × 20 Percentage of tennis balls 20 × 5
40 85
= =
100 100
= 40% = 85%

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