Page 49 - Hybrid PBD Matematik TG3_Edisi Guru

Matematik Tingkatan 3 Bab 2

1.

• Cari semua kombinasi perabot
yang mungkin yang dapat dibeli
Tilam/Mattress Sofa/Sofa Rak buku/Bookshelf dengan RM550 dan hitung jumlah
RM255.86 RM225.99 RM297.68 harga.
Find all the possible combination of
Dilah mempunyai RM550 dan ingin membeli perabot yang ditunjukkan furniture that can be bought using
RM550 and calculate the total price.
dalam rajah di atas. Perabot yang manakah selepas dia beli, dia akan
menerima baki yang paling rendah? Seterusnya, hitung jumlah harga
perabot tersebut betul kepada tiga angka bererti. KBAT Menilai
Dilah has RM550 and she wants to buy the furniture shown in the diagram above. Which
furniture after she bought it, she will receive the lowest balance? Hence, calculate the total
price of the furniture correct to three significant figures.

Tilam/ Mattress
RM255.86 ✓ ✓
Sofa/ Sofa
RM225.99 ✓ ✓
Rak buku/ Bookshelf ✓ ✓
RM297.68
Jumlah harga (RM) 481.85 553.54 523.67
Total price (RM)

Tidak cukup wang
Not enough money

Menerima baki paling rendah: Sofa dan rak buku
Receive the lowest balance: Sofa and bookshelf
Jumlah harga = RM523.67 = RM524 (3 a.b. / 3 s.f.)
Total price

2. Jisim 50 helai kertas graf ialah 322 g. Setiap helaian kertas graf dicetak • Cari jisim dan luas sehelai kertas
sepenuhnya dengan 560 segi empat sama bersisi 1 cm. Hitung jisim, graf untuk memperoleh jisim bagi
2
dalam g, bagi 1 mm kertas graf. Nyatakan jawapan anda dalam bentuk 1 mm kertas graf.
2
Find the mass and the area of a piece
piawai. of graph paper to obtain the mass of
The mass of 50 pieces of graph papers is 322 g. Every piece of graph paper is fully printed 1 mm of graph paper.
2
with 560 squares each with sides 1 cm. Calculate the mass, in g, of 1 mm of graph paper.
2
State your answer in standard form.
2
2
1 cm = 100 mm
Jisim bagi 1 mm kertas graf
2
Mass of 1 mm of graph paper
2
= (322 g ÷ 50) ÷ (560 × 100 mm )
2
6.44 g
=
56 000 mm 2 Kuiz 2
= 0.000115
= 1.15 × 10 g
–4
Praktis TIMSS/PISA

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